function show_advanced_search() {
	var bpos = Position.page($('search'));
	var offset_x = $('advancedsearch').getWidth() - $('search').getWidth()+4;
	$('advancedsearch').style.left = (bpos[0]-offset_x) + 'px';
	$('advancedsearch').style.top = (bpos[1]+$('search').getHeight()+1) + 'px';
	//$('advancedsearch').style.filter = "alpha(opacity=90)";
	$('advancedsearch').style.display = 'block';
	return false;
}
function hide_advanced_search() {
	$('advancedsearch').style.display = 'none';
	return false;
}