/* copyright 2005 by rainer.wollthan @ rocuments.de */
var bV=parseInt(navigator.appVersion);
NS4=(document.layers) ? true : false;
IE4=((document.all)&&(bV>=4)) ? true : false;
DOM=(!document.layers && !document.all && bV>=4) ? true : false;
capable = (NS4 || IE4 || DOM) ? true : false;

function closeAllByClassName(name){
	if (NS4) {
		for (i=0; i<document.layers.length; i++) {
			whichEl = document.layers[i];
			if (whichEl.id.toLowerCase().indexOf(name) != -1) {
				whichEl.visibility = "hide";
				whichEl.display = "none";
			}
		}
	} else if(IE4) {
		tempColl = document.all.tags("DIV");
		for (i=0; i<tempColl.length; i++) {
			whichEl = tempColl(i);
			if (whichEl.className == name){
				whichEl.style.display = "none";
				whichEl.style.visibility = "hidden";
			}
		}
	} else if(DOM) {
		tempColl = document.getElementsByTagName("DIV");
		for (i=0; i<tempColl.length; i++) {
			whichEl = tempColl[i];
			if (whichEl.className == name) {
				whichEl.style.visibility = "hidden";
				whichEl.style.display = "none";
			}
		}
	}

}

function openAllByClassName(name){
	if (NS4) {
		for (i=0; i<document.layers.length; i++) {
			whichEl = document.layers[i];
			if (whichEl.id.toLowerCase().indexOf(name) != -1) {
				whichEl.visibility = "show";
				whichEl.display = "block";
			}
		}
	} else if(IE4) {
		tempColl = document.all.tags("DIV");
		for (i=0; i<tempColl.length; i++) {
			whichEl = tempColl(i);
			if (whichEl.className == name){
				whichEl.style.visibility = "visible";
				whichEl.style.display = "block";
			}
		}
	} else if(DOM) {
		tempColl = document.getElementsByTagName("DIV");
		for (i=0; i<tempColl.length; i++) {
			whichEl = tempColl[i];
			if (whichEl.className == name) {
				whichEl.style.visibility = "visible";
				whichEl.style.display = "block";
			}
		}
	}
}

function closeAll(){
	closeAllByClassName("child");
	openAllByClassName("parent");	
}
function expandIt(el) {
	if (!capable) return;
	closeAll();
	if (IE4) {
		if(document.all[eval('el')+'auf']){
			document.all[eval('el')+'zu'].style.display = "none";
			document.all[eval('el')+'zu'].style.visibility = "hidden";
			document.all[eval('el')+'auf'].style.display = "block";
			document.all[eval('el')+'auf'].style.visibility = "visible";
		}
	} else if(NS4) {
		if(eval("document." + el +"auf")){
			whichEl = eval("document." + el +"auf");
			whichEl.visibility = "show";
			whichEl.display = "block";
			whichEl = eval("document." + el +"zu");
			whichEl.visibility = "hide";
			whichEl.display = "none";
		}
	} else if(DOM) {
		if(document.getElementById(el+'auf')){
			whichEl = document.getElementById(el+'auf');
			whichEl.style.visibility = "visible";
			whichEl.style.display = "block";
			whichEl = document.getElementById(el+'zu');
			whichEl.style.visibility = "hidden";
			whichEl.style.display = "none";
		}
	}
}