var TableSort = {};
TableSort.enabled = true;
TableSort.arrowNone='&nbsp;<img src="/images/pfeilnone.gif" width="11" height="11" border="0" alt="">';
TableSort.arrowUp='<img src="/images/pfeil8.gif" width="11" height="11" border="0" alt="&uarr;">';
TableSort.arrowDown='&nbsp;<img src="/images/pfeil7.gif" width="11" height="11" border="0" alt="&darr;">';
TableSort.titleText = '&uarr;&darr;';
TableSort.tables = [];
TableSort.lastSort = [];
TableSort.initAll = function() {
if (!TableSort.enabled) {
return;
}
var tableNodeList = document.getElementsByTagName('TABLE');
for (var x = 0, table; table = tableNodeList[x]; x++) {
TableSort.initTable_(table);
}
};
TableSort.init = function(var_args) {
if (!TableSort.enabled) {
return;
}
for (var x = 0; x < arguments.length; x++) {
var table = document.getElementById(arguments[x]);
if (table) {
TableSort.initTable_(table);
}
}
};
TableSort.initTable_ = function(table) {
TableSort.tables.push(table);
var t = TableSort.tables.length - 1;
if (table.tHead) {
for (var y = 0, row; row = table.tHead.rows[y]; y++) {
for (var x = 0, cell; cell = row.cells[x]; x++) {
TableSort.linkCell_(cell, t, x);
}
}
}
if (table.tFoot) {
for (var y = 0, row; row = table.tFoot.rows[y]; y++) {
for (var x = 0, cell; cell = row.cells[x]; x++) {
TableSort.linkCell_(cell, t, x);
}
}
}
TableSort.lastSort[t] = 0;
};

TableSort.linkCell_ = function(cell, t, x) {
if (TableSort.getClass_(cell)) {
var link = document.createElement('A');
link.href = 'javascript:TableSort.click(' + t + ', ' + x + ', "' +
escape(TableSort.getClass_(cell)) + '");';
if (TableSort.titleText) {
link.title = TableSort.titleText;
}
while(cell.hasChildNodes()) {
link.appendChild(cell.firstChild);
}
cell.appendChild(link);
var arrow = document.createElement('SPAN');
arrow.innerHTML = TableSort.arrowNone;
arrow.className = 'TableSort_' + t + '_' + x;
cell.appendChild(arrow);
}
};
TableSort.getClass_ = function(cell) {
var className = (cell.className || '').toLowerCase();
var classList = className.split(/\s+/g);
for (var x = 0; x < classList.length; x++) {
if (('compare_' + classList[x]) in TableSort) {
return classList[x];
}
}
return '';
};
TableSort.click = function(t, column, mode) {
var table = TableSort.tables[t];
if (!mode.match(/^[_a-z0-9]+$/)) {
alert('Illegal sorting mode type.');
return;
}
var compareFunction = TableSort['compare_' + mode];
if (typeof compareFunction != 'function') {
alert('Unknown sorting mode: ' + mode);
return;
}
var reverse = false;
if (Math.abs(TableSort.lastSort[t]) == column + 1) {
reverse = TableSort.lastSort[t] > 0;
TableSort.lastSort[t] *= -1;
} else {
TableSort.lastSort[t] = column + 1;
}
var spanprefix1 = 'TableSort_' + t + '_';
var spanprefix2 = 'TableSort_' + t + '_' + column;
var spans = table.getElementsByTagName('SPAN');
for (var s = 0, span; span = spans[s]; s++) {
if (span.className && span.className.substring(0, spanprefix1.length) ==
spanprefix1) {
if (span.className.substring(0, spanprefix2.length) == spanprefix2) {
if (reverse) {
 span.innerHTML = TableSort.arrowDown;
} else {
 span.innerHTML = TableSort.arrowUp;
}
} else {
span.innerHTML = TableSort.arrowNone;
}
}
}
if (!table.tBodies.length) {
return;
}
var tablebody = table.tBodies[0];
var cellDictionary = [];
for (var y = 0, row; row = tablebody.rows[y]; y++) {
var cell;
if (row.cells.length) {
cell = row.cells[column];
} else {
cell = row.childNodes[column];
}
cellDictionary[y] = [TableSort.dom2txt_(cell), row];
}
cellDictionary.sort(compareFunction);
for (y = 0; y < cellDictionary.length; y++) {
var i = reverse ? (cellDictionary.length - 1 - y) : y;
tablebody.appendChild(cellDictionary[i][1]);
}
};
TableSort.dom2txt_ = function(obj) {
if (!obj) {
return '';
}
if (obj.nodeType == 3) {
return obj.data;
}
var textList = [];
for (var x = 0, child; child = obj.childNodes[x]; x++) {
textList[x] = TableSort.dom2txt_(child);
}
return textList.join('');
};
TableSort.compare_case = function(a, b) {
if (a[0] == b[0]) {
return 0;
}
return (a[0] > b[0]) ? 1 : -1;
};
TableSort.compare_nocase = function(a, b) {
var aLower = a[0].toLowerCase();
var bLower = b[0].toLowerCase();
if (aLower == bLower) {
return 0;
}
return (aLower > bLower) ? 1 : -1;
};
TableSort.compare_num = function(a, b) {
var aNum = parseFloat(a[0]);
if (isNaN(aNum)) {
aNum = -Number.MAX_VALUE;
}
var bNum = parseFloat(b[0]);
if (isNaN(bNum)) {
bNum = -Number.MAX_VALUE;
}
if (aNum == bNum) {
return 0;
}
return (aNum > bNum) ? 1 : -1;
};


if (window.addEventListener) {
window.addEventListener('load', TableSort.initAll, false);
} else if (window.attachEvent) {
window.attachEvent('onload', TableSort.initAll);
}

if (navigator.appName == 'Microsoft Internet Explorer' &&
navigator.platform.indexOf('Mac') == 0) {
TableSort.enabled = false;
}