function popUpper(URL,sx,sy, minusX, minusY){
	var screenBreite=screen.width;
	var scteenHoehe=screen.height;
	var popUpperX=(screenBreite/2)- (minusX || 300);
	var popUpperY=(scteenHoehe/2)- (minusY || 163);
	popUpperAttr="width="+sx+",height="+sy+",scrollbars=no,top="+popUpperY+",left="+popUpperX;

	var Fenster = window.open(URL,'produkte',popUpperAttr);Fenster.focus();return false;
}