function expand() {
	var divStyle = document.getElementById('searchExt').style;
	var imgData = document.getElementById('advBasicFlip');
	if (divStyle.display == "block") {
		divStyle.display = "none";
		imgData.src = "../images/misc/adv_search.gif";
		imgData.alt = "Advanced Search";
		imgData.title = "Advanced Search";
		document.getElementById('basic').value = "true";
	}
	else {
		divStyle.display = "block";
		imgData.src = "../images/misc/basic_search.gif";
		imgData.alt = "Basic Search";
		imgData.title = "Basic Search";
		document.getElementById('basic').value = "false";
	}
}