var verfuegbare_Hoehe;
 var verfuegbare_Breite;
 var Posx;
 var Posy;
 verfuegbare_Hoehe=screen.availHeight;
 verfuegbare_Breite=screen.availWidth;
 posx=(verfuegbare_Breite-400)/2;
 posy=(verfuegbare_Hoehe-500)/2;
 function popUp(datei) {
  big=window.open(datei,'Fenster','width=470,height=480,statusbar=no,menubar=no,scrollbars=no,resize=no,screenx=' +posx+ ' ,screeny=' +posy+ ',left=' +posx+ ' ,top=' +posy+ '');//
 }
function popUp2(datei2) {
		big=window.open(datei2,'Fenster','width=500,height=525,statusbar=no,menubar=no,scrollbars=yes,resize=no,screenx=' +posx+ ' ,screeny=' +posy+ ',left=' +posx+ ' ,top=' +posy+ '');//
	}
	function popUp3(datei3) {
		big=window.open(datei3,'Fenster','width=450,height=350,statusbar=no,menubar=no,scrollbars=yes,resize=no,screenx=' +posx+ ' ,screeny=' +posy+ ',left=' +posx+ ' ,top=' +posy+ '');//
	}
		function popUp5(datei5) {
		big=window.open(datei5,'Fenster','width=650,height=450,statusbar=no,menubar=no,scrollbars=yes,resize=no,screenx=' +posx+ ' ,screeny=' +posy+ ',left=' +posx+ ' ,top=' +posy+ '');//
	}