function clearbox(el) {
if (el.defaultValue==el.value) el.value = ""
}

function fbs_click() {u=location.href;t=document.title;window.open('http://www.facebook.com/sharer.php?u='+encodeURIComponent(u)+'&t='+encodeURIComponent(t),'sharer','toolbar=0,status=0,width=626,height=436');return false;}

function ImgErr(source)
{
	source.style.display = "none";
	source.onerror = "";
	return true;
}

function showad(ad_id)
{
	 var width  = 850;
	 var height = 500;
	 var left   = (screen.width  - width)/2;
	 var top    = (screen.height - height)/2;
	 var params = 'width='+width+', height='+height;
	 params += ', top='+top+', left='+left;
	 params += ', directories=no';
	 params += ', location=no';
	 params += ', menubar=no';
	 params += ', resizable=no';
	 params += ', scrollbars=yes';
	 params += ', status=no';
	 params += ', toolbar=no';
	 newwin=window.open('http://classifieds.vr-zone.com/view.php?ad_ref='+ad_id,'windowname5', params);
	 if (window.focus) {newwin.focus()}
	 return false;
}