var table, tablebody, tablefoot, tablehead = null;
var debug;
var buffer = null;
var show_start = show_num = 0;
var cache = false;
var cache_breakeven = 1000;
var parametercount = null;
var isTree = false;

function setSelection(start, total, itemperpage, onchange) {
	itemperpage = parseInt(itemperpage);
	var selection = document.getElementById('selectPage');
	if(!selection && !isTree) {
		selection = document.getElementById('systemOverviewListPage');
		if(selection) {
			selection.innerHTML = '<select id="selectPage"></select>';
			selection = document.getElementById('selectPage');
			selection.onchange = new Function("document.getElementById('systemOverviewStart').value = (parseInt(this.value)-1) * parseInt(document.getElementById('systemOverviewNum').value); "+onchange);
		}
	} else if(selection) {
		selection.style.display = isTree ? 'none' : '';
		selection.style.visibility = isTree ? 'hidden' : '';
	}
	if(!isTree && selection) {
		var i;

		var pagecount = Math.ceil(total / itemperpage);
		if(pagecount < 1) {
			pagecount = 1;
		}
		if(pagecount != selection.options.length) {
			selection.options.length = 0;
			for(i=1; i<=pagecount; i++) {
				selection.options[selection.options.length] = new Option(i, i);
			}
			selection.value = (start / itemperpage) + 1;
		}
	}


	var numperpagesel = document.getElementById('selectNumPerPage');
	if(!numperpagesel && !isTree) {
		numperpagesel = document.getElementById('systemOverviewListNum');
		if(numperpagesel) {
			numperpagesel.innerHTML = '<select id="selectNumPerPage"></select>';
			numperpagesel = document.getElementById('selectNumPerPage');
			numperpagesel.onchange = new Function("document.getElementById('systemOverviewNum').value = this.value; document.getElementById('systemOverviewStart').value = Math.floor(parseInt(document.getElementById('systemOverviewStart').value) / this.value) * this.value; "+onchange);
		}
	} else if(numperpagesel) {
		numperpagesel.style.display = isTree ? 'none' : '';
		numperpagesel.style.visibility = isTree ? 'hidden' : '';
	}
	if(!isTree && numperpagesel) {
		if(numperpagesel.options.length == 0 || numperpagesel.options.length != (Math.min(50, total) / 5)) {
			numperpagesel.options.length = 0;
			var max = Math.min(50, Math.max(total, itemperpage));
			if(max < 5) max = 5;
			for(i=5; i<=max; i+= 5) {
				numperpagesel.options[numperpagesel.options.length] = new Option(i, i);
			}
			if(i <= 50 && (i-5) < total) numperpagesel.options[numperpagesel.options.length] = new Option(i, i);
			numperpagesel.value = itemperpage;
			if(numperpagesel.selectedIndex < 0) {
				numperpagesel.options[numperpagesel.options.length] = new Option(itemperpage, itemperpage);
				numperpagesel.selectedIndex = numperpagesel.options.length - 1;
			}
		}
	}
	numperpagesel = selection = i = itemperpage = total = start = pagecount = null;
}

function collapseTree(obj, open) {
	if(obj.className == 'listTreeImage') return;
	if(open == null) open = (obj.className == 'listTreeImage_plus');
	obj.className = open ? 'listTreeImage_min' : 'listTreeImage_plus';


	var listName = document.getElementById('systemOverviewName');
	if(listName) {
		listName = listName.value;
		var nameLength = listName.length;
		var c = systemGetCookie('treestatus');
		if(c == null || c.length == 0) c = [];
		else c = c.split(';');
		var found = false;
		for(var i=0; i<c.length; i++) {
			if(c[i].substring(0, nameLength+1) == listName+':') {
				var o = c[i].substring(nameLength+1);
				o = o.split(',');

				if(o.contains(obj.id)) {
					if(!open) {
						o.removeElement(obj.id);
					}
				} else if(open) {
					o.push(obj.id);
				}
				if(o.length > 0) {
					c[i] = listName+':'+o.join(',');
				} else {
					c.removeElementAt(i);
				}
				found = true;
				break;
			}
		}
		if(!found) {
			c.push(listName+':'+obj.id);
		}
		if(c != null && c.length) {
			systemSetCookie('treestatus', c.join(','));
		} else {
			systemDeleteCookie('treestatus');
		}
//		alert(systemGetCookie('treestatus'));
	}

	var row = obj.parentNode.parentNode;
	while(row.tagName.toLowerCase() != 'tr') {
		row = row.parentNode;
	}
	var i=0;
	while(obj.tagName == 'TD') {
		obj = obj.previousSibling;
		i ++;
		if(!obj) break;
	}
	var isImage, isSpacer;

	var t;
	if(row.style.display != 'none') {
		while(true) {
			row = row.nextSibling.nextSibling;
			if(!row) break;
			t = row.getElementsByTagName('table')[0].getElementsByTagName('tr')[0];
			if(i >= t.childNodes.length) break;
			isImage =  (t.childNodes[i].className.substring(0, 13) == 'listTreeImage');
			isSpacer = (t.childNodes[i].className.substring(0, 14) == 'listTreeSpacer');
			if(isImage || isSpacer) {
				if(!open) {
					row.style.display = 'none';
					row.previousSibling.style.display = 'none';
				} else {
					if(isImage) {
						row.style.display = '';
						row.previousSibling.style.display = '';
						if(t.childNodes[i].className == 'listTreeImage_min') {
							collapseTree(t.childNodes[i], true);
						}
					}
				}
			} else {
				break;
			}
		}
	}


	i = row = isImage = isSpacer = obj = open = null;
}
///