function setImage(objid,state) {
	var obj=document.getElementById(objid);
	obj.src="media/"+objid+"_"+state+".jpg";
}

function setGifImage(objid,state) {
	var obj=document.getElementById(objid);
	obj.src="media/"+objid+"_"+state+".gif";
}

function nextImage(type) {
	var il=$('contents_leftarrow');
	var ir=$('contents_rightarrow');
	var e=$('img_container');
	var path="user/"+type+"/"+f[(currImage+1)];
	e.src=path;
	currImage++;
	il.style.display='block';
	if ((currImage+1)>=maxImage) {
		ir.style.display='none';
	} else {
		ir.style.display='block';
	}
}

function prevImage(type) {
	var il=$('contents_leftarrow');
	var ir=$('contents_rightarrow');
	var e=$('img_container');
	var path="user/"+type+"/"+f[(currImage-1)];
	e.src=path;
	currImage--;
	ir.style.display='block';
	if (currImage<=0) {
		il.style.display='none';
	} else {
		il.style.display='block';
	}
}