function ShowDiv(elm)
{
	var node = document.getElementById(elm);
	var state = node.style.display;
	node.style.display = 'block';
	node.style.visibility = '';
}

function st_display (elm)
{
	var node = document.getElementById(elm);
	var state = node.style.display;
	node.style.display = state != 'block' ? 'block' : 'none';
	node.style.visibility = state != 'block' ? '' : 'hidden';
}


function st_blendeeinaus(elm)
{
	var node = document.getElementById(elm);
	var state = node.style.display;
	node.style.display = state != 'block' ? 'block' : 'none';
	node.style.visibility = state != 'block' ? '' : 'hidden';
}


function st_blendeein(elm)
{
	var node = document.getElementById(elm);
	var state = node.style.display;
	node.style.display = 'block';
	node.style.visibility = '';
}


function st_blendeaus(elm)
{
	var node = document.getElementById(elm);
	var state = node.style.display;
	node.style.display = 'none';
	node.style.visibility = 'hidden';
}



function st_trim (zeichenkette) {
    return zeichenkette.replace (/^\s+/, '').replace (/\s+$/, '');
}



var wmtt = null;

function display (id)
{
	var node = document.getElementById(id);
	var state = node.style.display;
	node.style.display = state != 'block' ? 'block' : 'none';
}


function showhelp(element,id){
	wmtt = document.getElementById("help" + id);
	document.onmousemove = update;
	wmtt.style.display = "block";
}

function hidehelp(elm,id){
	document.onmousemove = null;
	document.getElementById("help" + id).style.display = "none";
}

function update(e) {
	if (typeof window.pageYOffset != 'undefined') {
	   	x = (document.all) ? window.event.x + window.pageXOffset : e.pageX;
		y = (document.all) ? window.event.y + window.pageYOffset  : e.pageY;
	}
	else if (typeof document.compatMode != 'undefined' && document.compatMode != 'BackCompat') {
		x = (document.all) ? window.event.x + document.documentElement.scrollLeft : e.pageX;
		y = (document.all) ? window.event.y + document.documentElement.scrollTop  : e.pageY;
	}
	else if (typeof document.body != 'undefined') {
	   	x = (document.all) ? window.event.x + document.body.scrollLeft : e.pageX;
		y = (document.all) ? window.event.y + document.body.scrollTop  : e.pageY;
	}
	if (wmtt != null) {
		wmtt.style.left = (x+10) + "px";
		wmtt.style.top 	= (y+10) + "px";
	}
}


var onLoadFunctionList  = [];

/* registriert eine Funktion, die bei document.onload ausgeführt werden soll */
function registerOnLoadFunction (refFunction) {
	onLoadFunctionList.push(refFunction);
}

/* führt alle registrierten Funktionen bei document.onload aus */
function startOnLoadFunctions () {
	for (var i=0; i<onLoadFunctionList.length;i++) {
		onLoadFunctionList[i]();
	}
}