function getElementsByClass(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}

function InitCollapsingBlocks() {
	var oMainTable = document.getElementById('TableManagement');

	var aBlocks = getElementsByClass("Open", oMainTable, "tr")
	var aBottomLines = getElementsByClass("BottomLine", oMainTable, "tr")
	var aLinks = getElementsByClass("Close", oMainTable, "td")
	var aNames = getElementsByClass("Link", oMainTable, "table")
	
	for( i = 0; i < aLinks.length; i++ ) {
		aLinks[i].innerHTML = "^&nbsp;<a href='#stayhere' id='OpenClose_"+i+"' onclick='ClickOnBlock("+i+")'>показать</a>";
	}
	
	for( i = 0; i < aBlocks.length; i++ ) {
		aBlocks[i].id="Block_"+i;
		aBlocks[i].style.display="none";
	}

	for( i = 0; i < aBottomLines.length; i++ ) {
		aBottomLines[i].id="BottomLine_"+i;
		aBottomLines[i].style.display="none";
	}
	
	for( i = 0; i < aNames.length; i++ ) {
		aNames[i].getElementsByTagName("a")[0].onclick = new Function("ClickOnBlock("+i+"); return false;")
	}
}

function ClickOnBlock(Num) {
	var oBlock = document.getElementById("Block_"+Num);
	var oLink = document.getElementById("OpenClose_"+Num);
	var oBottomLine = document.getElementById("BottomLine_"+Num);
	if(oBlock.style.display=="none") {
		oBlock.style.display = "";
		oBottomLine.style.display = "";
		oLink.innerHTML = "скрыть";
	} else {
		oBlock.style.display = "none";
		oBottomLine.style.display = "none";
		oLink.innerHTML = "показать";
	}
}