function openPopUp(url,width,height,scrollbars,resize) 
{
	var sx = (screen.width-width)/2;
	var sy = (screen.height-height)/2;
	if(window.popUp)
		if (!popUp.closed)
			popUp.close();
	popUp=window.open(url, "popUp", "width="+width+", height="+height+", scrollbars="+scrollbars+", screenX="+sx+", screenY="+sy+", resize="+resize);
	popUp.moveTo(sx,sy);
	popUp.focus();
}

function drucken()
{
	if (window.print)
		window.print()
	else
		window.alert("Ihr Browser unterstützt diese Funktion leider nicht.")
}