function openWindow(Link,FensterName) {	
	var vWidth=785;	
	var vHeight=625;
	var myWindow = eval('window.open("' + Link + '", "' + FensterName + '", "height='+vHeight+',width='+vWidth+',status=yes,toolbar=no,menubar=no,scrollbars=yes,resizable=yes");');
	var links = (screen.availWidth-vWidth)/2;
   	var oben = (screen.availHeight-vHeight)/2;
 	myWindow.focus();
   	myWindow.moveTo(links,oben);
}