function PopWindow(popPage, winWidth, winHeight)
    {
         var windowName = "popupWindow";       
         //the center properties
         var winLeft = (screen.width - winWidth)/2;
         var winTop = (screen.height - winHeight)/2;
         newWindow = window.open(popPage,windowName,'width=' + winWidth + ',height=' + winHeight + ',top=' +  winTop + ',left=' + winLeft + ', resizable=yes,scrollbars=yes,status=yes');
    }