function ge(a){return window.document.getElementById(a)}

function vorschau(a){
	ge('invoverimg').src='images/fotos/'+a+'.jpg';
	ge('invoverdiv').style.display='';
}

var timer;
function scrollauf(){
	var i=0;
	clearTimeout(timer);
	d=ge('photobox');
	y=d.scrollTop;
	y++;
	d.scrollTop=y;
	timer=setTimeout('scrollauf()',25);
}

function scrollab() {
	var i=0;
	clearTimeout(timer);
	d=ge('photobox');
	y=d.scrollTop;
	y--;
	d.scrollTop=y;
	timer=setTimeout('scrollab()',25);
}