var dorthin = null;
	var w = 0;
	var h = 0;
	
	function indieMitte(datei,name,w,h) {
	        if (window.screen) {
	        var hori = screen.availWidth;
	        var verti = screen.availHeight;
	        dorthin = window.open(datei,name,'width='+ w  +',height='+ h +',left='+((hori - w- 10)* .5) +',top='+((verti - h- 30)* .5))
	dorthin.focus()
	}
	}