"use strict";

var debug = false;

var map = [ 393, 390, 391, 394, 1098, 395, 392, 389, 387, 388, 386,
1001, 1004, 1099, 1101, 1100, 1111, 1108, 286, 283, 377, 375, 376, 383,
384, 999, 1002, 1005, 1007, 1102, 1104, 1103, 1114, 1113, 1110, 1107,
285, 282, 280, 374, 372, 373, 380, 381, 382, 385, 1000, 1003, 1006,
990, 992, 1105, 1089, 1106, 1126, 1125, 1115, 1112, 1109, 287, 284,
281, 279, 277, 371, 369, 370, 413, 378, 379, 422, 425, 428, 431, 983,
986, 991, 993, 995, 1090, 1092, 1091, 1129, 1128, 1127, 1138, 1135,
1150, 1147, 1144, 259, 256, 278, 276, 274, 368, 366, 367, 410, 411,
412, 419, 420, 423, 426, 429, 981, 984, 987, 989, 994, 996, 998, 1093,
1095, 1094, 1132, 1131, 1130, 1141, 1140, 1137, 1134, 1149, 1146, 1143,
258, 255, 253, 275, 273, 271, 365, 363, 364, 407, 408, 409, 416, 417,
418, 421, 424, 427, 430, 982, 985, 988, 972, 974, 997, 1035, 1037,
1096, 1080, 1097, 1117, 1116, 1133, 1234, 1233, 1142, 1139, 1136, 1151,
1148, 1145, 260, 257, 254, 252, 268, 272, 270, 322, 362, 360, 361, 404,
405, 406, 521, 414, 415, 512, 533, 536, 539, 920, 923, 926, 911, 914,
973, 975, 977, 1036, 1038, 1040, 1081, 1083, 1082, 1120, 1119, 1118,
1237, 1236, 1235, 1228, 1225, 1258, 1255, 1252, 205, 202, 199, 196,
193, 269, 267, 265, 323, 321, 319, 359, 357, 358, 401, 402, 403, 518,
519, 520, 509, 510, 531, 534, 537, 918, 921, 924, 909, 912, 915, 917,
976, 978, 980, 1039, 1041, 1043, 1084, 1086, 1085, 1123, 1122, 1121,
1240, 1239, 1238, 1231, 1230, 1227, 1224, 1257, 1254, 1251, 204, 201,
198, 195, 192, 190, 266, 264, 262, 320, 318, 316, 356, 354, 355, 398,
399, 400, 515, 516, 517, 506, 507, 508, 511, 532, 535, 538, 919, 922,
925, 910, 913, 916, 900, 902, 979, 963, 965, 1042, 1026, 1028, 1087,
1071, 1088, 1180, 1179, 1124, 1216, 1215, 1241, 1288, 1287, 1232, 1229,
1226, 1259, 1256, 1253, 206, 203, 200, 197, 194, 191, 189, 187, 263,
261, 250, 317, 315, 313, 353, 351, 352, 467, 396, 397, 503, 513, 514,
575, 504, 505, 611, 524, 527, 530, 929, 932, 935, 848, 851, 854, 821,
824, 901, 903, 905, 964, 966, 968, 1027, 1029, 1031, 1072, 1074, 1073,
1183, 1182, 1181, 1219, 1218, 1217, 1291, 1290, 1289, 1327, 1324, 1249,
1246, 1243, 214, 211, 208, 142, 139, 136, 106, 103, 188, 186, 184, 251,
249, 247, 314, 312, 310, 350, 348, 349, 464, 465, 466, 500, 501, 502,
572, 573, 574, 608, 609, 522, 525, 528, 927, 930, 933, 846, 849, 852,
819, 822, 825, 827, 904, 906, 908, 967, 969, 971, 1030, 1032, 1034,
1075, 1077, 1076, 1186, 1185, 1184, 1222, 1221, 1220, 1294, 1293, 1292,
1330, 1329, 1326, 1323, 1248, 1245, 1242, 213, 210, 207, 141, 138, 135,
105, 102, 100, 185, 183, 181, 248, 246, 244, 311, 309, 307, 347, 345,
346, 461, 462, 463, 497, 498, 499, 569, 570, 571, 605, 606, 607, 610,
523, 526, 529, 928, 931, 934, 847, 850, 853, 820, 823, 826, 810, 812,
907, 891, 893, 970, 954, 956, 1033, 1017, 1019, 1078, 1062, 1079, 1171,
1170, 1187, 1207, 1206, 1223, 1279, 1278, 1295, 1315, 1314, 1331, 1328,
1325, 1250, 1247, 1244, 215, 212, 209, 143, 140, 137, 107, 104, 101,
99, 97, 182, 180, 178, 245, 243, 241, 308, 306, 304, 344, 342, 343,
458, 459, 460, 494, 495, 496, 566, 567, 568, 602, 603, 604, 647, 650,
653, 656, 659, 662, 665, 857, 860, 863, 839, 842, 845, 830, 833, 811,
813, 815, 892, 894, 896, 955, 957, 959, 1018, 1020, 1022, 1063, 1065,
1064, 1174, 1173, 1172, 1210, 1209, 1208, 1282, 1281, 1280, 1318, 1317,
1316, 1363, 1360, 1375, 1372, 1369, 1384, 1381, 1378, 133, 130, 127,
124, 121, 118, 115, 112, 98, 96, 94, 179, 177, 175, 242, 240, 238, 305,
303, 301, 332, 330, 331, 455, 456, 457, 491, 492, 493, 563, 564, 565,
599, 600, 601, 644, 645, 648, 651, 654, 657, 660, 663, 855, 858, 861,
837, 840, 843, 828, 831, 834, 836, 814, 816, 818, 895, 897, 899, 958,
960, 962, 1021, 1023, 1025, 1066, 1068, 1067, 1177, 1176, 1175, 1213,
1212, 1211, 1285, 1284, 1283, 1321, 1320, 1319, 1366, 1365, 1362, 1359,
1374, 1371, 1368, 1383, 1380, 1377, 132, 129, 126, 123, 120, 117, 114,
111, 109, 95, 93, 91, 176, 174, 172, 239, 237, 235, 302, 300, 298, 329,
327, 328, 452, 453, 454, 488, 489, 490, 560, 561, 562, 596, 597, 598,
641, 642, 643, 646, 649, 652, 655, 658, 661, 664, 856, 859, 862, 838,
841, 844, 829, 832, 835, 756, 758, 817, 792, 794, 898, 882, 884, 961,
945, 947, 1024, 1008, 1010, 1069, 1044, 1070, 1162, 1161, 1178, 1198,
1197, 1214, 1270, 1269, 1286, 1306, 1305, 1322, 1342, 1341, 1367, 1364,
1361, 1376, 1373, 1370, 1385, 1382, 1379, 134, 131, 128, 125, 122, 119,
116, 113, 110, 108, 43, 92, 90, 79, 173, 171, 169, 236, 234, 232, 299,
297, 295, 326, 324, 325, 449, 450, 451, 485, 486, 487, 557, 558, 559,
593, 594, 595, 629, 639, 640, 638, 695, 698, 701, 668, 671, 674, 677,
680, 683, 749, 752, 755, 740, 743, 746, 775, 777, 757, 759, 761, 793,
795, 797, 883, 885, 887, 946, 948, 950, 1009, 1011, 1013, 1045, 1047,
1046, 1165, 1164, 1163, 1201, 1200, 1199, 1273, 1272, 1271, 1309, 1308,
1307, 1345, 1344, 1343, 1353, 1351, 1420, 1417, 1414, 1393, 1390, 1387,
1402, 1399, 1396, 34, 31, 28, 25, 22, 19, 62, 60, 44, 42, 40, 80, 78,
76, 170, 168, 166, 233, 231, 229, 296, 294, 292, 341, 339, 340, 446,
447, 448, 482, 483, 484, 554, 555, 556, 590, 591, 592, 626, 627, 628,
636, 637, 693, 696, 699, 666, 669, 672, 675, 678, 681, 747, 750, 753,
738, 741, 744, 774, 776, 778, 779, 760, 762, 764, 796, 798, 800, 886,
888, 890, 949, 951, 953, 1012, 1014, 1016, 1054, 1057, 1048, 1168,
1167, 1166, 1204, 1203, 1202, 1276, 1275, 1274, 1312, 1311, 1310, 1348,
1347, 1346, 1355, 1354, 1352, 1350, 1419, 1416, 1413, 1392, 1389, 1386,
1401, 1398, 1395, 33, 30, 27, 24, 21, 18, 61, 59, 58, 41, 39, 37, 77,
75, 73, 167, 165, 163, 230, 228, 226, 293, 291, 289, 338, 336, 337,
443, 444, 445, 479, 480, 481, 551, 552, 553, 587, 588, 589, 623, 624,
625, 634, 635, 684, 687, 694, 697, 700, 667, 670, 673, 676, 679, 682,
748, 751, 754, 739, 742, 745, 787, 789, 791, 780, 765, 763, 769, 770,
799, 801, 803, 889, 875, 864, 952, 936, 938, 1015, 1053, 1055, 1058,
1061, 1059, 1050, 1049, 1169, 1153, 1152, 1205, 1188, 1260, 1277, 1297,
1296, 1313, 1337, 1336, 1349, 1332, 1356, 1412, 1410, 1408, 1421, 1418,
1415, 1394, 1391, 1388, 1403, 1400, 1397, 35, 32, 29, 26, 23, 20, 65,
63, 56, 55, 53, 38, 36, 48, 74, 72, 161, 164, 162, 152, 227, 225, 224,
290, 288, 219, 335, 333, 334, 435, 441, 442, 440, 477, 478, 476, 549,
550, 548, 585, 586, 615, 621, 622, 620, 631, 632, 633, 685, 688, 691,
709, 706, 703, 718, 715, 712, 736, 733, 730, 727, 724, 721, 783, 785,
788, 790, 781, 782, 766, 767, 771, 773, 802, 804, 873, 874, 865, 866,
937, 939, 940, 942, 1056, 1060, 1052, 1051, 1157, 1156, 1155, 1154,
1190, 1189, 1262, 1261, 1299, 1298, 1339, 1338, 1334, 1333, 1358, 1357,
1411, 1409, 1406, 1404, 1424, 1427, 1430, 1433, 1436, 1439, 11, 14, 17,
2, 5, 8, 69, 67, 64, 57, 54, 52, 51, 50, 47, 89, 88, 84, 160, 159, 151,
150, 148, 223, 222, 221, 218, 216, 433, 434, 437, 438, 439, 473, 474,
475, 546, 547, 579, 583, 584, 614, 617, 618, 619, 630, 686, 689, 692,
708, 705, 702, 717, 714, 711, 735, 732, 729, 726, 723, 720, 784, 786,
768, 772, 805, 806, 808, 880, 877, 876, 867, 869, 871, 941, 943, 944,
1160, 1159, 1158, 1194, 1192, 1191, 1263, 1265, 1264, 1302, 1301, 1300,
1340, 1335, 1407, 1405, 1422, 1425, 1428, 1431, 1434, 1437, 9, 12, 15,
0, 3, 6, 71, 68, 66, 49, 46, 45, 87, 83, 82, 158, 156, 149, 147, 146,
144, 220, 217, 432, 436, 469, 470, 471, 472, 543, 545, 577, 578, 582,
612, 613, 616, 710, 707, 704, 719, 716, 713, 737, 734, 731, 728, 725,
722, 807, 809, 878, 879, 881, 868, 870, 872, 1196, 1195, 1193, 1268,
1267, 1266, 1304, 1303, 1423, 1426, 1429, 1432, 1435, 1438, 10, 13, 16,
1, 4, 7, 86, 85, 81, 157, 155, 154, 153, 145, 468, 540, 541, 542, 544,
576, 580, 581, 70, 690 ];

/*

<a href="#" onMouseover="playsound(soundfile)">Example 1</a>
<a href="#" onMouseover="playsound('different.wav')">Example 2</a>

<div id="coolmenu" onMouseover="bindsound('A', soundfile, this)">

<script type="text/javascript">

//
// JavaScript Sound effect- © Dynamic Drive DHTML code library (www.dynamicdrive.com)
// Visit http://www.dynamicDrive.com for hundreds of DHTML scripts
// This notice must stay intact for legal use
//

var soundfile="sidebar.wav" //path to sound file, or pass in filename directly into playsound()

function playsound(soundfile){
if (document.all && document.getElementById){
document.getElementById("soundeffect").src="" //reset first in case of problems
document.getElementById("soundeffect").src=soundfile
}
}

function bindsound(tag, soundfile, masterElement){
if (!window.event) return
var source=event.srcElement
while (source!=masterElement && source.tagName!="HTML"){
if (source.tagName==tag.toUpperCase()){
playsound(soundfile)
break
}
source=source.parentElement
}
}

</script>

Function "bindsound()" accepts 3 parameters- 1) The tag name of the element to bind the sound to ("A" for <a>, "SPAN" for <span> etc), 2) the sound file to play, whether a variable or path to sound file, and finally, 3), the keyword "this", which should never be modified.

// -----------------------
<audio controls="controls" height="50px" width="100px">
  <source src="song.mp3" type="audio/mpeg" />
  <source src="song.ogg" type="audio/ogg" />
<embed height="50px" width="100px" src="song.mp3" />
</audio>
// ------------------------

*/
function $(id) { return document.getElementById(id); }
function $new(name) { return document.createElement(name); }
function $txt(txt) { return document.createTextNode(txt); }
function trim(str) { return str.replace("/^\s\s*/", '').replace("/\s\s*$/", ''); }
function valid(str) { if (str===undefined) return false; if (str.length==0) return false; return true;}
function isSliding() { var z = $("body").getAttribute("data-visible"); return $("table"+z) ? $("table"+z).offsetLeft!=0 : false; }
function htmlDecode(input) { var e = $new('div'); e.innerHTML = input; return e.firstChild===undefined ? input : e.firstChild.nodeValue; }
function setUTC(el, time) { var str = time.toUTCString(); var utc = str.substr(str.length-12, 8); el.innerHTML = "&#8226;&nbsp;"+utc+"&nbsp;UTC&nbsp;&#8226;"; }

function cycleCol(el)
{
    var col = el.getAttribute("data-color");
    col++;
    col %= 31;
    el.setAttribute("data-color", col);
    if (col>16)
        col = 31-col;
    var hex = col.toString(16);
    el.style.color = "#"+hex+"0"+hex+"0"+hex+"f";
}

/*
function newWindow(newContent) 
{
    if (document.referrer != "http://www.referringPageName.html")
        return;

    winContent = window.open(newContent,
                             'nextWin',
                             'right=0,top=20,width=350,height=350,toolbar=no,scrollbars=no,resizable=no');
                             }*/

function onload()
{
    try { var dummy = new XMLHttpRequest(); }
    catch(e)
    {
        // FIXME: Add a message to the body.
        alert("Your browser doesn't support dynamic reload.");
        return;
    }

    var name = location.hash.length==0 ? "fact" : location.hash.substr(1);

    var args = location.search.substr(1).split('&');

    for (var i=0; i<args.length; i++)
    {
        switch (args[i])
        {
        case "max":     $("body").setAttribute("data-max",     "yes"); continue;
        case "noslide": $("body").setAttribute("data-noslide", "yes"); continue;
        }

        var entry = args[i].split('=');
        if (entry.length!=2)
            continue;

        switch (entry[0])
        {
        case "w": $("body").setAttribute("data-width",  entry[1]); break;
        case "h": $("body").setAttribute("data-height", entry[1]); break;
        }
    }


    /*
     alert("0 -- "+navigator.appCodeName+"\n"+
          "1 -- "+navigator.appName+"\n"+
          "2 -- "+navigator.appVersion+"\n"+
          "3 -- "+navigator.platform+"\n"+
          "4 -- "+navigator.userAgent);
          */
    loadPage(name, 0, 0);
}

function onresize()
{
    var z = $("body").getAttribute("data-visible");

    //$("table"+z).style.width="100%";
    $("image"+z).style.width="1px";
    $("canvas"+z).width=1;

    doresize(z);

}

function loadPage(name, z, dz)
{
    if (isSliding())
        return;

    var xmlPage = new XMLHttpRequest();
    xmlPage.open('POST', "struct/"+name+'.page', true);
    xmlPage.onload = function ()
    {
        if (xmlPage.status!=200)
        {
            alert("ERROR[0] - HTTP request '"+name+".page': "+xmlPage.statusText+" ["+xmlPage.status+"]");
            //setTimeout("loadPage('+name+')", 5000);
            /****** invalidate ******/
            return;
        }

        buildPage(name, xmlPage.responseText, z, dz);
        changePage(z, z+dz);

        //changePage(name, xmlHttp.resposeText);
        //slideOut(name, xmlHttp.responseText);
        //displayPage(name, xmlHttp.responseText);
        //onresize(true);
    };

    xmlPage.send(null);

    location.hash = name;
}

function sendCommand(command)
{
    var debug = false;

    var uri = "index.php?";
    if (debug==true)
        uri += "debug&";
    uri += command;

    var xmlCmd = new XMLHttpRequest();
    xmlCmd.open('POST', uri, true);
    xmlCmd.onload = function ()
    {
        if (xmlCmd.status!=200)
        {
            alert("ERROR[1] - HTTP request: "+xmlCmd.statusText+" ["+xmlCmd.status+"]");
            return;
        }

        if (xmlCmd.responseText.length==0)
        {
            alert("No proper acknowledgment of command execution received.");
            return;
        }

        var txt = xmlCmd.responseText.split('\n');
        switch (txt[0])
        {
        case "1": alert("dimctrl unreachable."); break;
        case "2": /*success*/ break;
        default: alert("Return code '"+txt[0]+"' unknown."); break;
        }
        if (txt.length>1)
            alert(xmlCmd.responseText);
    };
    xmlCmd.send(null);
}


function submit(script)
{
    var inputs = document.getElementsByTagName("input");

    var args = "start="+script+".dim";
    for (var i=0; i<inputs.length; i++)
        args += "&"+inputs[i].name+"="+inputs[i].value;

    //alert(args);

    sendCommand(args);
}

function buildPage(name, text, oldz, dz)
{
    var fname = dz==0 ? "fact" : $("table"+oldz).getAttribute("data-file");

    var z = oldz + dz;

    var lines = text.split('\n');

    if (lines.length==0)
    {
        alert("buildPage - received data empty.");
        return;
    }

    if (lines[0].length==0)
    {
        alert("buildPage - title missing");
        return;
    }

    var title  = lines[0];
    var is_cmd = title[0]=='*';
    if (is_cmd)
        title = title.substr(1);

    var table = $("table"+z);
    if (table)
        $("body").removeChild(table);

    table = $new("table");
    table.setAttribute("class", "tborder");
    table.id = "table"+z;
    table.border = 0;
    table.cellSpacing = 0;
    table.cellPadding = "0px";
    /*table.width = "100%";*/
    //table.setAttribute("style", "overflow:hidden;position:fixed;top:0px;left:"+window.innerWidth+"px;")
    table.setAttribute("style", "position:absolute;top:0px;left:"+window.innerWidth+"px;width:100%;");

    // -----------------------------------------------------

    var th = $new("thead");
    th.colSpan = 3;
    th.width = "100%";
    table.appendChild(th);

    var htr = $new("tr");
    th.appendChild(htr);

    var htd = $new("td");
    htd.setAttribute("class", "thead");
    htd.colSpan = 3;
    htd.width = "100%";
    htr.appendChild(htd);

    // -------------

    var htab = $new("table");
    htab.width = "100%";
    htd.appendChild(htab);

    var hhtr = $new("tr");
    htab.appendChild(hhtr);

    var htd0 = $new("td");
    var htd1 = $new("td");
    var htd2 = $new("td");
    var htd3 = $new("td");
    var htd4 = $new("td");
    htd0.setAttribute("class", "tcell1");
    htd1.setAttribute("class", "tcell2");
    htd2.setAttribute("class", "tcell1");
    htd2.setAttribute("width", "1px");
    htd3.setAttribute("class", "tcell1");
    htd3.setAttribute("width", "1px");
    htd4.setAttribute("width", "1px");
    hhtr.appendChild(htd4);
    hhtr.appendChild(htd3);
    hhtr.appendChild(htd0);
    hhtr.appendChild(htd1);
    hhtr.appendChild(htd2);
/*
    htd0.style.verticalAlign = "middle";
    htd1.style.verticalAlign = "middle";
    htd2.style.verticalAlign = "middle";
    htd3.style.verticalAlign = "middle";
    htd4.style.verticalAlign = "middle";
*/
    var div1 = $new("div");
    var div2 = $new("div");
    var div3 = $new("div");
    var div4 = $new("div");
    div4.id = "warn"+z;
    div2.setAttribute("class", "icon_white");
    div4.setAttribute("class", "icon_color");
    div2.setAttribute("style", "background-position:-396px 50%;");
    div4.setAttribute("style", "display:none;background-position:-12px -12px;");
    div2.onclick = function () { this.style.backgroundColor='rgba(0,0,0,0.77)'; loadPage(fname,   z, -dz); };
    div4.onclick = function () { this.style.backgroundColor='rgba(0,0,0,0.77)'; loadPage('error', z,  +1); };

    if (name=="fact")
    {
        div3.setAttribute("class", "icon_color");
        div3.setAttribute("style", "background-position:-58px -146px;");
    }
    else
    {
        div3.setAttribute("class", "icon_white");
        div3.setAttribute("style", "background-position:-575px 50%;");
        div3.onclick = function () { this.style.backgroundColor='rgba(0,0,0,0.77)'; loadPage('fact',  z,  -1); };
    }

    var sp0 = $new("span");
    var sp1 = $new("span");
    var sp2 = $new("span");
    sp0.id = "ldot" +z;
    sp1.id = "title"+z;
    sp2.id = "rdot" +z;
    sp1.setAttribute("style", "font-size:large;");
    sp0.setAttribute("data-color", "3");
    sp2.setAttribute("data-color", "3");
    sp0.appendChild($txt(" \u2022 "));
    sp1.appendChild($txt(title));
    sp2.appendChild($txt(" \u2022 "));
    if (is_cmd)
    {
        sp1.onclick = function () { this.style.backgroundColor='rgba(0,0,0,0.77)'; submit(name); this.style.backgroundColor=''; };
    }
    else
    {
        if (name!='control')
            sp1.onclick = function () { this.style.backgroundColor='rgba(0,0,0,0.15)'; loadPage('control', z, +1); };
    }

    div1.setAttribute("style", "font-size:small;");
    div1.id = "reporttime"+z;
    div1.appendChild($txt("---"));

    div1.onclick = function () { this.style.backgroundColor='rgba(0,0,0,0.77)'; sendCommand('stop'); this.style.backgroundColor=''; };

    htd0.appendChild(sp0);
    htd0.appendChild(sp1);
    htd0.appendChild(sp2);

    htd1.appendChild(div1);
    if (dz!=0/* && z+dz!=0*/)
        htd2.appendChild(div2); // back
    htd3.appendChild(div3); // home
    htd4.appendChild(div4);     // Warning

    // -----------------------------------------------------

    var tbody = $new("tbody");
    table.appendChild(tbody);

    // -----------------------------------------------------

    var tf = $new("tfoot");
    table.appendChild(tf);

    var ftr = $new("tr");
    tf.appendChild(ftr);

    var ftd = $new("td");
    ftd.setAttribute("class",   "tfoot");
    ftd.width = "100%";
    ftd.colSpan = 3;
    ftr.appendChild(ftd);

    var ftab = $new("table");
    ftab.width = "100%";
    ftd.appendChild(ftab);

    var ftdH = $new("td");
    var ftd0 = $new("td");
    var ftd1 = $new("td");
    var ftd2 = $new("td");
    var ftd3 = $new("td");
    ftdH.setAttribute("width", "1px");
    ftd2.setAttribute("width", "1px");
    ftd3.setAttribute("width", "1px");

    ftdH.setAttribute("class", "tcell1");
    ftd0.setAttribute("class", "tcell1");
    ftd1.setAttribute("class", "tcell2");
    ftd2.setAttribute("class", "tcell2");
    ftd3.setAttribute("class", "tcell2");

    ftab.appendChild(ftdH);
    ftab.appendChild(ftd0);
    ftab.appendChild(ftd1);
    ftab.appendChild(ftd2);
    ftab.appendChild(ftd3);

    var fdivH = $new("div");
    var fdiv0 = $new("span");
    var fdiv1 = $new("span");
    var fdiv2 = $new("div");
    var fdiv3 = $new("div");
    ftd0.style.paddingLeft = "5px";
    fdiv2.id="cmd"+z;

    fdiv2.setAttribute("class", "icon_white");
    fdiv3.setAttribute("class", "icon_white");
    fdiv2.setAttribute("style", "background-position:-72px 50%;");
    fdiv2.onclick = function () { this.style.backgroundColor='rgba(0,0,0,0.77)'; sendCommand('stop'); this.style.backgroundColor=''; };
    if (is_cmd)
    {
        fdiv3.onclick = function () { this.style.backgroundColor='rgba(0,0,0,0.77)'; submit(name); this.style.backgroundColor=''; };
        fdiv3.setAttribute("style", "background-position:-109px 50%;");
    }
    else
    {
        fdiv3.onclick = function () { this.style.backgroundColor='rgba(0,0,0,0.77)'; loadPage('control', z,  +1); };
        fdiv3.setAttribute("style", "background-position:-288px 50%;");
    }

    if (name.substr(0, 5)=="help-")
    {
        fdivH.setAttribute("class", "icon_color");
        fdivH.setAttribute("style", "background-position:-408px -57px;");
        //fdivH.setAttribute("style", "background-position:-13px -57px;");
    }
    else
    {
        fdivH.setAttribute("class", "icon_white");
        fdivH.setAttribute("style", "background-position:-611px 50%;");
        fdivH.onclick = function () { this.style.backgroundColor='rgba(0,0,0,0.77)'; loadPage('help-'+name, z, +1); };
    }


    fdiv0.setAttribute("style", "font-size:large;");
    fdiv1.setAttribute("style", "font-size:small;");
    fdiv1.id = "localtime"+z;

    fdiv0.appendChild($txt("logbook"));
    fdiv1.appendChild($txt("loading..."));

    ftdH.appendChild(fdivH);
    ftd0.appendChild(fdiv0);
    ftd1.appendChild(fdiv1);
    ftd2.appendChild(fdiv2);
    if (name!='control')
        ftd3.appendChild(fdiv3);

    $("body").appendChild(table);

    for (var i=0; i<lines.length; i++)
    {
        lines[i] = trim(lines[i]);
        if (lines[i][0] == '#')
            lines.splice(i--, 1);
    }

    // Concatenate consecutive lines until they have at least two colons
    for (var i=2; i<lines.length; i++)
    {
        if (lines[i].length==0)
            continue;

        while (i<lines.length)
        {
            var cols = lines[i-1].split('|');
            if (cols.length>=3)
                break;

            lines[i-1] += lines[i].length==0 ? '<p/>' : " "+lines[i];
            lines.splice(i,1);
        }
    }

    var counter = 1;
    for (var i=1; i<lines.length; i++)
    {
        if (lines[i].length==0)
            continue;

        var cols = lines[i].split('|');
        if (cols.length != 3 && cols.length !=4)
        {
            alert("Wrong number of columns in line #"+i+" in '"+name+"': '"+lines[i]+"' N(cols)="+cols.length);
            continue;
        }

        var check = cols[1].split("=");

        if (check.length>1 && (check[0]=="camera" || check[0]=="hist"))
        {
            var data = cols[1].substring(check[0].length+1).split("/");

            var tr = $new("tr");
            tr.setAttribute("class", "row");
            //tr.setAttribute("style", "margin:0;padding:0;");

            var td = $new("td");
            td.setAttribute("class", "container");
            td.id = "container";
            td.colSpan = 3;
            tr.appendChild(td);

            var canv = $new("canvas");
            canv.id = "canvas"+z;
            canv.width = "1";
            canv.height = "1";
            //canv.onclick = function () { save(); }
            canv.setAttribute("data-type", check[0]);
            canv.setAttribute("data-file", data[0]);
            canv.setAttribute("data-data", cols[1].substring(check[0].length+data[0].length+2));
//            canv.setAttribute("style", "display:none;");
            td.appendChild(canv);

            var img = $new("img");
            img.src = "img/dummy.png";//needed in firefox
            img.id = "image"+z;
            img.setAttribute("style", "width:1px;height:1px;display:none;");
            td.appendChild(img);

            tbody.appendChild(tr);
            continue;
        }

        var tr = $new("tr");
        tr.setAttribute("class", "row");
        if (valid(cols[0]))
            tr.setAttribute("onclick", "this.style.background='#ccb'; loadPage('"+cols[0]+"', "+z+", -1);");
        if (valid(cols[3]))
            tr.setAttribute("onclick", "this.style.background='#ccb'; loadPage('"+cols[3]+"', "+z+", +1);");

        var td0 = $new("td");
        td0.setAttribute("class", "tcol0");
        tr.appendChild(td0);

        if (check.length>0 && check[0]=="image")
        {
            var img = $new("img");
            img.style.width="100%";
            img.style.display="block";
            img.src = "img/"+check[1];
            td0.style.paddingLeft=0;
            td0.style.border=0;
            td0.colSpan=3;
            td0.appendChild(img);

            tbody.appendChild(tr);
            continue;
        }

        if (valid(cols[0]))
        {
            var sp = $new("div");
            sp.setAttribute("class", "icon_black");
            sp.setAttribute("style", "background-position: -144px 50%;");
            td0.appendChild(sp);
        }

        var td1 = $new("td");
        td1.setAttribute("class", "tcol1");
        td1.width = "100%";
        tr.appendChild(td1);

        var td2 = $new("td");
        td2.setAttribute("class", "tcol2");
        td2.width = "18px";

        if (valid(cols[3]))
        {
            var sp = $new("div");
            sp.setAttribute("class", "icon_black");
            sp.setAttribute("style", "background-position: -108px 50%;");
            td2.appendChild(sp);
        }
        tr.appendChild(td2);

        var tab = $new("table");
        tab.width = "100%";
        td1.appendChild(tab);

        var innertr = $new("tr");
        tab.appendChild(innertr);

        var cell1 = $new("td");
        cell1.setAttribute("class", "tcell1");

        var cell2 = $new("td");
        cell2.setAttribute("class", valid(cols[1]) ? "tcell2" : "tcell2l");

        if (check.length==0 || check[0]!="input")
        {
            var div = $new("div");
            div.innerHTML = cols[1];
            cell1.appendChild(div);
            //cell1.appendChild($txt(cols[1]));

            if (cols.length>2 && cols[2].length>0)
            {
                cell2.id = "data"+z+"-"+counter;
                cell2.setAttribute("data-form",  cols[2]);
                cell2.appendChild($txt("---"));
                counter++;
            }
            else
                cell1.setAttribute("class", "description");
        }
        else
        {
            var opt = check[1].split('/');

            if (opt.length<2)
                alert("Argument name missing for'"+check[1]+"'");

            var div = $new("div");
            div.innerHTML = opt[0];
            cell1.appendChild(div);
            //cell1.appendChild($txt(opt[0]));

            var input = $new("input");
            input.name = opt[1];
            input.type = "text";
            input.maxlength = 80;
            if (opt.length>2)
                input.value=opt[2];

            cell2.appendChild(input);
        }

        innertr.appendChild(cell1);
        innertr.appendChild(cell2);

        tbody.appendChild(tr);
    }
/*
    if (true)
    {
        tr = $new("tr");
        tr.setAttribute("class", "row");

        td = $new("td");
        td.colSpan = "3";
        tr.appendChild(td);

        var sp = $new("div");
        sp.setAttribute("class", "icon_color");
        sp.setAttribute("style", "background-position: -144px -14px;");
        td.appendChild(sp);

        sp = $new("div");
        sp.setAttribute("class", "icon_color");
        sp.setAttribute("style", "background-position: -56px -14px;");
        td.appendChild(sp);

        tr.appendChild(td);

        tbody.appendChild(tr);
    }
*/
    // ---------------------------------------
    if (debug == true)
    {
        tr = $new("tr");
        tr.setAttribute("class", "row");

        td = $new("td");
        td.id = "debug"+z;
        td.colSpan = 3;
        tr.appendChild(td);

        tbody.appendChild(tr);
    }

    // ---------------------------------------

    table.setAttribute("data-file", name);
    doresize(z);
}

function doresize(z)
{
    var img  = $("image"+z);
    var canv = $("canvas"+z);
    if (img === undefined || canv === undefined)
        return;

    var h = $("table"+z).offsetHeight;
    if (h == 0)
        return;

    var fixedw = $("body").getAttribute("data-width");
    var fixedh = $("body").getAttribute("data-height");

    var W = fixedw>0 ? fixedw : window.innerWidth;
    var H = fixedh>0 ? fixedh : window.innerHeight;

    //alert(window.innerWidth+"/"+$("body").scrollWidth+"/"+$("table"+z).scrollWidth);

    // wIw   bSw   tSw
    // 430 / 860 / 430
    // 429 / 430 / 430
    // 366 / 430 / 430

    // 672 / 1344 /  672
    // 672 / 1329 / 1329

    // Chrome: needs scrollbar
    // wiW  bsW  tsW  bcW  tcW  boW  toW
    // 100  200  100   84  100   84  100
    // 100   85   85   69   85   79   85

    // Chrome: does not need scrollbar
    //  100  200  100  84  100   84  100
    //  100  100  100  84  100   84  100

    // Firefox: does not need scrollbar
    //  100   84  100  84  100   84  100
    //  100   84  100  84  100   84  100

    // Firefox: does need scrollbar
    //  100   84  100  84  100   84  100
    //  100   69   85  69   85   69   85

    // opera no scrollbar:
    //  100   84  100  84  100   84  100
    //  100   84  100  84  100   84  100

    var max = $("body").getAttribute("data-max")=="yes";

    var ih = max ? W : H - h + parseInt(img.style.height, 10);

    // This might create the scroll bar
    img.style.height = ih+"px";
    canv.height      = ih;

    // now we can evaluate the correct view-port
    // (-2 is the border size of the parent element 'container')
    //var sW = (fixedw ? fixedw : $("table"+z).scrollWidth)-2;
    var sW = fixedw ? fixedw : canv.parentNode.clientWidth;

    img.style.width = sW+"px";
    canv.width      = sW;

    // ------ debug -----
    if (debug == true)
    {
        $('debug'+z).innerHTML = "";
        $('debug'+z).innerHTML += "|W="+W +"/"+H;
        $('debug'+z).innerHTML += "|H="+h+"/"+$("table"+z).offsetHeight+"/"+img.offsetHeight;
        $('debug'+z).innerHTML += "|I="+img.style.height+"+"+H+"-"+h;
    }
}

var intervalSlide = null;

function changePage(oldz, newz)
{
    // No page displayed yet
    if (oldz==newz)
    {
        $("table"+newz).style.left="0px";
        $("body").setAttribute("data-visible", newz);

        doresize(0);

        //setInterval(refresh_text, 1000);
        //setInterval(refresh_graphics, 5000);

        refresh_text();
        refresh_graphics();
        return;
    }

    var W = window.innerWidth;
    if (W==0 || $("body").getAttribute("data-noslide")=="yes")
    {
        $("body").setAttribute("data-visible", newz);
        $("body").removeChild($("table"+oldz));
        $("table"+newz).style.left="0px";
        return;
    }

    if (newz>oldz)
        $("table"+newz).style.left = W+"px";
    else
        $("table"+newz).style.left = (-W-1)+"px";

    $("body").setAttribute("data-visible", newz);

    // This is needed on my mobile to ensure that te browser
    // doesn't try to zoom during shifting
    $("table"+newz).style.position="fixed";
    $("table"+oldz).style.position="fixed";

    intervalSlide = setInterval(function (){doShift(oldz,newz);}, 75);
}

function doShift(oldz, newz)
{
    var t0 = $("table"+oldz);
    var t1 = $("table"+newz);

    if (t0.style.display=="none")
    {
        clearInterval(intervalSlide);
        $("body").removeChild(t0);

        t1.style.position="absolute";

        // Now the scroll bar might have to appear or disappear
        doresize(newz);
        return;
    }

    var x0 = t0.offsetLeft;
    var x1 = t1.offsetLeft;

    var W = window.innerWidth;

    if (newz<oldz)
    {
        x0 += W/5;
        x1 += W/5;
    }

    if (newz>oldz)
    {
        x0 -= W/5;
        x1 -= W/5;
    }

    if ((newz<oldz && x1>=0) || (newz>oldz && x1<=0))
    {
        t0.style.display="none";
        x1 = 0;
    }

    t0.style.left = x0+"px";
    t1.style.left = x1+"px";
}

var timeoutText = null;
var timeoutGraphics = null;

function refresh_text()
{
    var z=$("body").getAttribute("data-visible");

    var fname = $("table"+z).getAttribute("data-file");

    var is_help = fname.substr(0,5)=="help-";

    // Is sliding, no file defined or just help text?
    if (isSliding() || !valid(fname) || is_help)
    {
        if (is_help)
        {
            setUTC($("localtime"+z), new Date());
            $("reporttime"+z).innerHTML="";
        }

        // invalidate?
        timeoutText = setTimeout(refresh_text, 1000);
        return;
    }

    var xmlText = new XMLHttpRequest();
    xmlText.open('POST', "data/"+fname+'.data', true);
    xmlText.onload = function ()
    {
        if (xmlText.status!=200)
        {
            alert("ERROR[1] - HTTP request '"+fname+".data': "+xmlText.statusText+" ["+xmlText.status+"]");
            timeoutText = setTimeout(refresh_text, 10000);
            return;
        }

        if (!isSliding())
        {
            cycleCol($("ldot"+z));
            update_text(fname, xmlText.responseText);
        }
        timeoutText = setTimeout(refresh_text, 3000);
    };
    xmlText.send(null);
}

var date0 = null;

function update_text(fname, result)
{
    var z=$("body").getAttribute("data-visible");
    var table = $("table"+z);

    if (table.getAttribute("data-file") != fname)
        return;

    var tokens = result.split('\n');

    // ----------------------------------------------------

    var rtime = $("reporttime"+z);
    var ltime = $("localtime"+z);

    var now = new Date();

    var header = tokens[0].split('\t');

    // File corrupted / should we remove the date?)
    if (header.length!=3 && header.length!=2 && header.length!=1 && header[0].length!=13)
    {
        // we ignore corrupted files for one minute
        if (date0==null || date0.getTime()+60000<now.getTime())
            rtime.style.color = "darkred";

        return;
    }

    // File OK
    date0 = now;

    var stamp = new Date();
    stamp.setTime(header[0]);

    // File older than 1min
    if (stamp.getTime()+60000<now.getTime())
        rtime.style.color = "darkred";
    else
        rtime.style.color = "";

    setUTC(rtime, stamp);
    setUTC(ltime, now);

    // ----------------------------------------------------

    $("warn"+z).style.display = header.length>=2 && header[1]=='1' ? "" : "none";

    if (header.length==3)
        $("cmd"+z).style.backgroundColor = header[2]=='1' ? "darkgreen" : "darkred";

    // ----------------------------------------------------

    var p = table.tBodies.length==3 ? 1 : 0;
    var tbody = table.tBodies[p];

    for (var line=1; line<tokens.length; line++)
    {
        if (tokens[line].length==0)
            continue;

        var e = $("data"+z+"-"+line);
        if (e === undefined)
            continue;

        var form = e.getAttribute("data-form");
        if (form===undefined)
            continue;

        var cols = tokens[line].split('\t');
        for (var col=1; col<cols.length; col++)
            form = form.replace("\$"+(col-1), cols[col].length==0 ? "&mdash;" : cols[col]);

        if (cols.length<=1)
            form = "&mdash;";

        form = form.replace(/<#(.*?)>/g, "<font color='$1'>");
        form = form.replace(/<([\+-])>/g, "<font size='$11'>");
        form = form.replace(/<\/([#\+-])>/g, "</font>");
        form = form.replace(/([0-9][0-9]):([0-9][0-9]):([0-9][0-9])/g,
                            "<pre>$1</pre>:<pre>$2</pre>:<pre>$3</pre>");
        form = form.replace(/--:--:--/g, "<pre>  </pre> <pre>  </pre> <pre>  </pre>");

        var newe = $new("div");
        newe.innerHTML = form;
        e.replaceChild(newe, e.lastChild);

        e.parentNode.parentNode.parentNode.parentNode.style.background=cols[0];
    }
}

// http://billmill.org/static/canvastutorial/index.html
// http://www.netmagazine.com/tutorials/learning-basics-html5-canvas
// http://www.alistapart.com/articles/responsive-web-design/

function refresh_graphics()
{
    var z = $("body").getAttribute("data-visible");

    var canvas = $("canvas"+z);

    // Is sliding or no data file defined?
    var fname = canvas==null ? "" : canvas.getAttribute("data-file");
    if (isSliding() || !valid(fname))
    {
        // invalidate?
        timeoutGraphics = setTimeout(refresh_graphics, 3000);
        return;
    }

    var xmlGfx = new XMLHttpRequest();
    xmlGfx.open('POST', "data/"+fname, true);
    xmlGfx.onload = function ()
    {
        if (xmlGfx.status!=200)
        {
            alert("ERROR[2] - Request '"+fname+"': "+xmlGfx.statusText+" ["+xmlGfx.status+"]");
            timeoutGraphics = setTimeout(refresh_graphics, 10000);
            //****** invalidate ******
            return;
        }

        if (!isSliding())
        {
            cycleCol($("rdot"+z));
            process_eventdata(xmlGfx.responseText);
        }
        timeoutGraphics = setTimeout(refresh_graphics, 5000)
    };
    xmlGfx.send(null);
}


function hueToRGB(hue)
{
    hue /= 3;
    hue %= 6;

    if (hue<1) return parseInt(255*hue,     10);
    if (hue<3) return parseInt(255,         10);
    if (hue<4) return parseInt(255*(4-hue), 10);

    return 0.
}

function hueToHex(flt)
{
    var s = hueToRGB(flt).toString(16);
    return s.length==2 ? s : "0"+s;
}

function HLStoRGB(hue)
{
    hue *= 14;

    var sr = hueToHex(20-hue);
    var sg = hueToHex(14-hue);
    var sb = hueToHex(26-hue);

    return sr+sg+sb;
}

function color(col)
{
    if (col==65533)
        col = 0;

    var hue = col/128;
    return HLStoRGB(hue);
}

function toHex(str, idx)
{
    var ch = str[idx].toString(16);
    return ch.length==2 ? ch : "0"+ch;
}

function drawHex(ctx, x, y, col)
{
    ctx.fillStyle = "#"+color(col);

    ctx.save();

    ctx.translate(x, y);
    ctx.scale(1/2, 1/3);

    ctx.beginPath();
    ctx.moveTo( 1,  1);
    ctx.lineTo( 0,  2);
    ctx.lineTo(-1,  1);
    ctx.lineTo(-1, -1);
    ctx.lineTo( 0, -2);
    ctx.lineTo( 1, -1);
    ctx.fill();

    ctx.restore();
}

function drawDisc(ctx, x, y, r, col)
{
    ctx.fillStyle = "#"+color(col);

    ctx.save();

    ctx.translate(x, y);

    ctx.beginPath();
    ctx.arc(0, 0, r, 0, Math.PI*2, true);
    ctx.fill();

    ctx.restore();
}

function beginDrawCam(scale)
{
    var z    = $("body").getAttribute("data-visible");
    var canv = $("canvas"+z);

    var w = Math.min(canv.width/scale, canv.height/scale);

    var ctx = canv.getContext("2d");

    ctx.save();
    ctx.translate(canv.width/2, canv.height/2);
    ctx.scale(w*2, w*2);

    return ctx;
}

/**
 * @constructor
 */
function Position(s, ring, i)
{
    switch (s)
    {
    case 1: this.x =  ring     - i*0.5;  this.y =       + i; break;
    case 2: this.x =  ring*0.5 - i;      this.y =  ring    ; break;
    case 3: this.x = -ring*0.5 - i*0.5;  this.y =  ring - i; break;
    case 4: this.x = -ring     + i*0.5;  this.y =       - i; break;
    case 5: this.x = -ring*0.5 + i;      this.y = -ring    ; break;
    case 0: this.x =  ring*0.5 + i*0.5;  this.y = -ring + i; break;
    }
    this.d = (function () { return this.x*this.x + this.y*this.y*3/4; });
}

function drawFullCam(data)
{
    if (data.length!=40 && data.length!=160 && data.length!=320 && data.length!=1440)
    {
        alert("Camera - Received data has invalid size ("+data.length+"b)");
        return;
    }

    var div = map.length/data.length;
    var off = data.length==320 ? 0.2 : 0;

    var ctx = beginDrawCam(83);
    // ctx.rotate(Math.PI/3);

    ctx.scale(1, Math.sqrt(3)/2);
    ctx.translate(-0.5, 0);

    drawHex(ctx, 0, 0, data.charCodeAt(parseInt(map[0]/div+off, 10)));

    var cnt = 1;
    for (var ring=1; ring<24; ring++)
    {
        for (var s=0; s<6; s++)
        {
            for (var i=1; i<=ring; i++)
            {
                var pos = new Position(s, ring, i);
                if (pos.d() - pos.x > 395.75)
                    continue;

                var p = parseInt(map[cnt]/div+off, 10);

                drawHex(ctx, pos.x, pos.y, data.charCodeAt(p));
                cnt++;
            }
        }
    }

    drawHex(ctx, 7, -22, data.charCodeAt(parseInt(map[1438]/div+off, 10)));
    drawHex(ctx, 7,  22, data.charCodeAt(parseInt(map[1439]/div+off, 10)));

    ctx.restore();
}

function drawCam(data)
{
    var ctx = beginDrawCam(27);
    ctx.rotate(Math.PI/6);
    ctx.scale(1, Math.sqrt(3)/2);

    drawHex(ctx, 0, 0, data.charCodeAt(0));

    var cnt = 1;
    for (var ring=1; ring<=7; ring++)
    {
        for (var s=0; s<6; s++)
        {
            for (var i=1; i<=ring; i++)
            {
                var pos = new Position(s, ring, i);
                if (pos.d() > 44)
                    continue;

                if (ring==7)
                {
                    if (i==6 && (s==0 || s==3))
                        continue;
                    if (i==1 && (s==1 || s==4))
                        continue;
                }

                drawHex(ctx, pos.x, pos.y, data.charCodeAt(cnt++));
            }
        }
    }

    ctx.restore();
}

function drawCamLegend(canv, data)
{
    var unit = htmlDecode(canv.getAttribute("data-data"));

    var umin = data[1];
    var umax = data[2];

    var min  = data[3]+unit
    var med  = data[4]+unit;
    var max  = data[5]+unit;

    var v0 = parseFloat(umin);
    var v1 = parseFloat(umax);

    var diff = v1-v0;

    var cw = canv.width;
    var ch = canv.height;

    var ctx = canv.getContext("2d");

    ctx.font         = "8pt Arial";
    ctx.textAlign    = "right";
    ctx.textBaseline = "top";

    for (var i=0; i<11; i++)
    {
        ctx.strokeStyle = "#"+color(16*i);
        ctx.strokeText((v0+diff*i/10).toPrecision(3)+unit, cw-5, 125-i*12);
    }

    var mw = Math.max(ctx.measureText(min).width,
                      ctx.measureText(med).width,
                      ctx.measureText(max).width);

    ctx.textBaseline = "top";
    ctx.strokeStyle  = "#000";

    ctx.strokeText(min, 5+mw, 5+24);
    ctx.strokeText(med, 5+mw, 5+12);
    ctx.strokeText(max, 5+mw, 5);
}

function drawGraph(canv, vals, data)
{
    var unit = htmlDecode(canv.getAttribute("data-data"));//.split("/");

    var umin = vals[1]+unit;
    var umax = vals[2]+unit;

    var stat = vals[3]+unit+"   /   "+vals[4]+unit+"   /   "+vals[5]+unit;

    var cw = canv.width;
    var ch = canv.height;

    var ctx = canv.getContext("2d");

    var dw = 3;  // tick width
    var fs = 8;  // font size

    ctx.font      = fs+"pt Arial";
    ctx.textAlign = "right";

    var dim0 = ctx.measureText(umin);
    var dim1 = ctx.measureText(umax);

    var tw = Math.max(dim0.width, dim1.width)+dw+2;

    var ml = 5+tw; // margin left
    var mr = 10;   // margin right

    var mt = 5+2*fs+4; // margin top
    var mb = fs/2+4;   // margin bottom

    var nx = 20;
    var ny = 10;

    var w = cw-ml-mr;
    var h = ch-mt-mb;

    ctx.strokeStyle = "#666";

    // --- data ---
    if (data.length>1)
    {
        ctx.beginPath();
        ctx.moveTo(ml, ch-mb-data.charCodeAt(0)/128*h);
        for (var i=1; i<data.length; i++)
            ctx.lineTo(ml+w/(data.length-1)*i, ch-mb-data.charCodeAt(i)/128*h);

        // --- finalize data ---
        ctx.lineTo(cw-mr, ch-mb);
        ctx.lineTo(ml,    ch-mb);
        ctx.fillStyle = "#"+color(100);
        ctx.stroke();
        ctx.fill();
    }

    ctx.beginPath();

    // --- grid ---

    ctx.strokeStyle = "#eee";

    for (var i=1; i<=nx; i++)
    {
        ctx.moveTo(ml+w*i/nx, ch-mb);
        ctx.lineTo(ml+w*i/nx,    mt);
    }
    for (var i=0; i<ny; i++)
    {
        ctx.moveTo(ml,   mt+h*i/ny);
        ctx.lineTo(ml+w, mt+h*i/ny);
    }
    ctx.stroke();
    ctx.closePath();
    ctx.beginPath();

    ctx.strokeStyle = "#000";

    // --- axes ---
    ctx.moveTo(ml,    mt);
    ctx.lineTo(ml,    ch-mb);
    ctx.lineTo(cw-mr, ch-mb);

    for (var i=1; i<=nx; i++)
    {
        ctx.moveTo(ml+w*i/nx, ch-mb-dw);
        ctx.lineTo(ml+w*i/nx, ch-mb+dw);
    }
    for (var i=0; i<ny; i++)
    {
        ctx.moveTo(ml-dw, mt+h*i/ny);
        ctx.lineTo(ml+dw, mt+h*i/ny);
    }
    ctx.stroke();
    ctx.closePath();

    ctx.textBaseline = "bottom";
    ctx.strokeText(umin, ml-dw-2, ch-1);

    ctx.textBaseline = mt>fs/2 ? "middle" : "top";
    ctx.strokeText(umax, ml-dw-2, mt);

    ctx.textBaseline = "top";
    ctx.textAlign    = "center";
    ctx.strokeText(stat, ml+w/2, 5);
}

function process_eventdata(result)
{
    if (result.length==0)
        return;

    var z = $("body").getAttribute("data-visible");
    var canv = $("canvas"+z);
    if (canv === undefined)
        return;

    var type = canv.getAttribute("data-type");

    var ctx = canv.getContext("2d");
    ctx.clearRect(0, 0, canv.width, canv.height);

    var data = result.split('\n');
    if (result.length<4)
        return;

    var len = 0;
    for (var i=0; i<6; i++)
        len += data[i].length+1;

    switch (type)
    {
        //case "camera": drawCam(result);     break;
    case "hist":
        drawGraph(canv, data, result.substr(len));
        break;
    case "camera":
        drawFullCam(result.substr(len));
        drawCamLegend(canv, data);
        break;
    }

    var now = new Date();
    var tm  = new Date();
    tm.setTime(data[0]);
    if (tm.getTime()+60000<now.getTime())
    {
        ctx.fillStyle = "rgba(255, 255, 255, 0.75)";
        ctx.fillRect(0, 0, canv.width, canv.height);
    }

    //$("image"+z).src = canv.toDataURL("image/png");
}

function save()
{
    var z = $("body").getAttribute("data-visible");

    var canvas = $("canvas"+z);
    var img    = canvas.toDataURL("image/png");

    img = img.replace("image/png", "image/octet-stream");

    document.location.href = img;
}

window['onload'] = onload;