function openw(url, breite, hoehe) {
  popWin = window.open(url,'pop', 'width='+breite+', height='+hoehe+', resizable=1, scrollbars=yes');
  popWin.focus();
}
function hasXmlHttpObject() {
	var xmlHttp=null;
	try {
 		// Firefox, Opera 8.0+, Safari
 		xmlHttp=new XMLHttpRequest();
 	} catch (e) {
 	// Internet Explorer

 		try	{
  			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
  		} catch (e) {  			
  			try	{
  				xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");  	
  			} catch (e) {}	
  		}
  		 
 	}
	return (xmlHttp == null)? false : true;
}