// JavaScript-Funktionen:

 function openShop() {
 /*
     var xWidth = 920;
     var yHeight = 640;
     var xLeft = (screen.width/2) - (xWidth/2);
     var yTop = (screen.height/2) - (yHeight/2);
     */
     var xWidth = screen.width - 50;
     var yHeight = screen.height - 100;
     var xLeft = 20;
     var yTop = 20;
     win = window.open("shop-eingang-auswahl.php", "shop", "left=" + xLeft + ", top=" + yTop + ", width=" + xWidth + ", height=" + yHeight + ", scrollbars=yes");
     win.focus();
 }