function drucken(seite) {
	w=685; 
	h=500; 
	x=Math.round((screen.width-w)/2); 
	y=Math.round((screen.height-w)/2); 
	printview = window.open("print.php?"+seite,"printview","scrollbars=yes,width="+w+",height="+h+",left="+x+",top="+y); 
	printview.focus();
	printview.print();
}