IE = (document.all); // Internet Explorer
NC = (document.layers); // Netscape
Opera = (document.getElementById); // Opera


function goTo(URL){
	if(navigator.appName=="Netscape") window.parent.location = URL
	else window.parent.navigate(URL);
}

function popUpWindow(URLStr, left, top, width, height)
{
  window.open(URLStr, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,copyhistory=no,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}

function show_error(fieldName){
	if(fieldName!=null || fieldName!="") eval("document.getElementById('label_"+fieldName+"').className = 'fehler'");
}

function hide_error(){
	var labels=document.getElementsByTagName("span");	
	for(i=0; i < labels.length; i++) if(eval('labels['+i+'].id.substr(0,5)')=='label') eval("labels["+i+"].className=''");
}