var zxcTO;

function Scroll(id,dis,pos){
 var obj=document.getElementById(id)
 obj.scrollTop=obj.scrollTop+dis;
 if (pos){obj.scrollTop=pos; }
 else {zxcTO=setTimeout( function(){ Scroll(id,dis); },10); }
}

function showImage(gallery,file_name, id){
	document.getElementById(id).style.backgroundImage = "url(../_images/"+gallery+"/"+file_name+".jpg)";	
}