var image_path = "http://static.bitenova.nl/img/";
var image_up = "arrowup.gif";
var image_down = "arrowdown.gif";
var image_none = "arrownone.gif";
var europeandate = true;
var alternate_row_colors = true;
addEvent(window, "load", sortables_init);
var SORT_COLUMN_INDEX;
var thead = false;
function sortables_init() {
	if (!document.getElementsByTagName) return;
	tbls = document.getElementsByTagName("table");
	for (ti=0;ti<tbls.length;ti++) {
		thisTbl = tbls[ti];
		if (((' '+thisTbl.className+' ').indexOf("main_table") != -1) && (thisTbl.id)) {
			ts_makeSortable(thisTbl);
		}
	}
}
function ts_makeSortable(t) {
	if (t.rows && t.rows.length > 0) {
		if (t.tHead && t.tHead.rows.length > 0) {
			var firstRow = t.tHead.rows[t.tHead.rows.length-1];
			thead = true;
		} else {
			var firstRow = t.rows[0];
		}
	}
	if (!firstRow) return;
	for (var i=0;i<firstRow.cells.length;i++) {
		var cell = firstRow.cells[i];
		var txt = ts_getInnerText(cell);
		if (cell.className != "unsortable" && cell.className.indexOf("unsortable") == -1) {
			cell.innerHTML = '<a href="#" class="sortheader" onclick="ts_resortTable(this, '+i+');return false;">'+txt+' <span class="sortarrow"><img src="'+ image_path + image_none + '" alt="&darr;"/></span></a>';
		}
	}
	if (alternate_row_colors) {
		alternate(t);
	}
}
function ts_getInnerText(el) {
	if (typeof el == "string") return el;
	if (typeof el == "undefined") { return el };
	if (el.innerText) return el.innerText;
	var str = "";
	var cs = el.childNodes;
	var l = cs.length;
	for (var i = 0; i < l; i++) {
		switch (cs[i].nodeType) {
			case 1:
				str += ts_getInnerText(cs[i]);
				break;
			case 3:
				str += cs[i].nodeValue;
				break;
		}
		if (cs[i].nodeName=="IMG") str += '<img src="'+ cs[i].src  +'" />'
	}
	return str;
}
function ts_resortTable(lnk, clid) {
	var span;
	for (var ci=0;ci<lnk.childNodes.length;ci++) {
		if (lnk.childNodes[ci].tagName && lnk.childNodes[ci].tagName.toLowerCase() == 'span') span = lnk.childNodes[ci];
	}
	var spantext = ts_getInnerText(span);
	var td = lnk.parentNode;
	var column = clid || td.cellIndex;
	var t = getParent(td,'TABLE');
	if (t.rows.length <= 1) return;
	var itm = "";
	var i = 1;
	while (itm == "") {
		var itm = ts_getInnerText(t.tBodies[0].rows[i].cells[column]);
		itm = trim(itm);
		if (itm.substr(0,4) == "<!--" || itm.length == 0) {
			itm = "";
		}
		i++;
	}
	sortfn = ts_sort_caseinsensitive;
	if (itm.match(/^\d\d[\/\.-][a-zA-z][a-zA-Z][a-zA-Z][\/\.-]\d\d\d\d$/)) sortfn = ts_sort_date;
	if (itm.match(/^\d\d[\/\.-]\d\d[\/\.-]\d\d\d{2}?$/)) sortfn = ts_sort_date;
	if (itm.match(/^-?[£$€Û¢´]\d/)) sortfn = ts_sort_numeric;
	if (itm.match(/^-?(\d+[,\.]?)+(E[-+][\d]+)?%?$/)) sortfn = ts_sort_numeric;
	if (itm.match(/^\d+\.\d+ (GB|MB|KB)$/)) sortfn = ts_sort_byte;
	SORT_COLUMN_INDEX = column;
	var firstRow = new Array();
	var newRows = new Array();
	for (k=0;k<t.tBodies.length;k++) {
		for (i=0;i<t.tBodies[k].rows[0].length;i++) { 
			firstRow[i] = t.tBodies[k].rows[0][i]; 
		}
	}
	for (k=0;k<t.tBodies.length;k++) {
		if (!thead) {
			for (j=1;j<t.tBodies[k].rows.length;j++) { 
				newRows[j-1] = t.tBodies[k].rows[j];
			}
		} else {
			for (j=0;j<t.tBodies[k].rows.length;j++) { 
				newRows[j] = t.tBodies[k].rows[j];
			}
		}
	}
	newRows.sort(sortfn);
	if (span.getAttribute("sortdir") != 'up') {
			ARROW = '<img src="'+ image_path + image_down + '" alt="&darr;"/>';
			newRows.reverse();
			span.setAttribute('sortdir','up');
	} else {
			ARROW = '<img src="'+ image_path + image_up + '" alt="&uarr;"/>';
			span.setAttribute('sortdir','down');
	}
    for (i=0; i<newRows.length; i++) {
		if (newRows[i].className && (newRows[i].className.indexOf('sorttop') != -1)) {
			t.tBodies[0].appendChild(newRows[i]);
		}
	}
    for (i=0; i<newRows.length; i++) { 
		if (!newRows[i].className || newRows[i].className.indexOf('sorttop') == -1) {
			t.tBodies[0].appendChild(newRows[i]);
		}
	}
	var allspans = document.getElementsByTagName("span");
	for (var ci=0;ci<allspans.length;ci++) {
		if (allspans[ci].className == 'sortarrow') {
			if (getParent(allspans[ci],"table") == getParent(lnk,"table")) {
				allspans[ci].innerHTML = '<img src="'+ image_path + image_none + '" alt="&darr;"/>';
			}
		}
	}
	span.innerHTML = ARROW;
	alternate(t);
}
function getParent(el, pTagName) {
	if (el == null) {
		return null;
	} else if (el.nodeType == 1 && el.tagName.toLowerCase() == pTagName.toLowerCase()) {
		return el;
	} else {
		return getParent(el.parentNode, pTagName);
	}
}
function sort_date(date) {	
	dt = "00000000";
	if (date.length == 11) {
		mtstr = date.substr(3,3);
		mtstr = mtstr.toLowerCase();
		switch(mtstr) {
			case "jan": var mt = "01"; break;
			case "feb": var mt = "02"; break;
			case "mar": var mt = "03"; break;
			case "apr": var mt = "04"; break;
			case "may": var mt = "05"; break;
			case "jun": var mt = "06"; break;
			case "jul": var mt = "07"; break;
			case "aug": var mt = "08"; break;
			case "sep": var mt = "09"; break;
			case "oct": var mt = "10"; break;
			case "nov": var mt = "11"; break;
			case "dec": var mt = "12"; break;
		}
		dt = date.substr(7,4)+mt+date.substr(0,2);
		return dt;
	} else if (date.length == 10) {
		if (europeandate == false) {
			dt = date.substr(6,4)+date.substr(0,2)+date.substr(3,2);
			return dt;
		} else {
			dt = date.substr(6,4)+date.substr(3,2)+date.substr(0,2);
			return dt;
		}
	} else if (date.length == 8) {
		yr = date.substr(6,2);
		if (parseInt(yr) < 50) { 
			yr = '20'+yr; 
		} else { 
			yr = '19'+yr; 
		}
		if (europeandate == true) {
			dt = yr+date.substr(3,2)+date.substr(0,2);
			return dt;
		} else {
			dt = yr+date.substr(0,2)+date.substr(3,2);
			return dt;
		}
	}
	return dt;
}
function ts_sort_date(a,b) {
	dt1 = sort_date(ts_getInnerText(a.cells[SORT_COLUMN_INDEX]));
	dt2 = sort_date(ts_getInnerText(b.cells[SORT_COLUMN_INDEX]));
	if (dt1==dt2) {
		return 0;
	}
	if (dt1<dt2) { 
		return -1;
	}
	return 1;
}
function ts_sort_numeric(a,b) {
	var aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]);
	aa = clean_num(aa);
	var bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]);
	bb = clean_num(bb);
	return compare_numeric(aa,bb);
}
function compare_numeric(a,b) {
	var a = parseFloat(a);
	a = (isNaN(a) ? 0 : a);
	var b = parseFloat(b);
	b = (isNaN(b) ? 0 : b);
	return a - b;
}
function ts_sort_caseinsensitive(a,b) {
	aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]).toLowerCase();
	bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]).toLowerCase();
	if (aa==bb) {
		return 0;
	}
	if (aa<bb) {
		return -1;
	}
	return 1;
}
function ts_sort_byte(a,b) {
	var aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]);
	aa = to_kbyte(aa);
	var bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]);
	bb = to_kbyte(bb);
	return compare_numeric(aa,bb);
}
function to_kbyte(str) {
	var num;
	var tmp = new Array();
	tmp = str.split(' ');
	if (tmp[1]=="Byte") num = tmp[0]/1024;
	if (tmp[1]=="KB") num = tmp[0]*1;
	if (tmp[1]=="MB") num = tmp[0]*1024;
	if (tmp[1]=="GB") num = tmp[0]*1024*1024;
	return num;
}
function ts_sort_default(a,b) {
	aa = ts_getInnerText(a.cells[SORT_COLUMN_INDEX]);
	bb = ts_getInnerText(b.cells[SORT_COLUMN_INDEX]);
	if (aa==bb) {
		return 0;
	}
	if (aa<bb) {
		return -1;
	}
	return 1;
}
function addEvent(elm, evType, fn, useCapture)
{
	if (elm.addEventListener){
		elm.addEventListener(evType, fn, useCapture);
		return true;
	} else if (elm.attachEvent){
		var r = elm.attachEvent("on"+evType, fn);
		return r;
	} else {
		alert("Handler could not be removed");
	}
}
function clean_num(str) {
	str = str.replace(new RegExp(/[^-?0-9.]/g),"");
	return str;
}
function trim(s) {
	while (s.substring(0,1) == ' ') {
		s = s.substring(1,s.length);
	}
	while (s.substring(s.length-1,s.length) == ' ') {
		s = s.substring(0,s.length-1);
	}
	return s;
}
function alternate(table) {
	var tableBodies = table.getElementsByTagName("tbody");
	for (var i = 0; i < tableBodies.length; i++) {
		var tableRows = tableBodies[i].getElementsByTagName("tr");
		if (tableRows[0].className == "d") j = 0;
		else j = 1;
		for (; j < tableRows.length; j++) {
			if ( (j % 2) == 0 ) tableRows[j].className = "";
			else tableRows[j].className = "d";
		}
	}
}