function pop(desktopURL,sizeX,sizeY) {
    var DownAl = screen.availHeight;
    var RightAl = screen.availWidth;
    if (sizeY > DownAl) {sizeY = DownAl - 40;}
    	else {sizeY = sizeY;}
    if (sizeX > RightAl) {sizeX = RightAl - 20;}
    	else {sizeX = sizeX;}
    var desktop = window.open(desktopURL,'_blank','toolbar=no,location=no,status=yes,menubar=no,scrollbars=no,resizable=yes,left=0,screenX=0,top=0,screenY=0,width='+ sizeX +',height='+ sizeY);
  }