function advancedChange() {
	if(document.getElementById('advancedLayer').style.display == "block") {
		document.getElementById('advancedLayer').style.display = 'none';
		document.getElementById('advancedLink').innerHTML = '<img style="border:0" src="/images/expand_down.gif" alt="expand"/> Show advanced <img style="border:0" src="/images/expand_down.gif" alt="expand" />';
		}
	else {
		document.getElementById('advancedLayer').style.display = 'block';
		document.getElementById('advancedLink').innerHTML = '<img style="border:0" src="/images/collapse_up.gif" alt="collapse" /> Hide advanced <img style="border:0" src="/images/collapse_up.gif" alt="collapse" />';
	}
}
function notFound(vem) {
	if(this.src!="/images/notfound.gif")
 		document.getElementById(vem).src = '/images/notfound.gif';
	return 1;
}