// JavaScript Document
var expanded = false;

function switchMenu() {
	var as;
	if (!expanded) {
		as = document.getElementById('bioMenu').getElementsByTagName('a');
		as.item(1).style.background = "URL('images/minus.gif') no-repeat";
		document.getElementById('bioSubmenu').style.display = 'block';
		expanded = true;
	}
	else {
		as = document.getElementById('bioMenu').getElementsByTagName('a');
		as.item(1).style.background = "URL('images/plus.gif') no-repeat";
		document.getElementById('bioSubmenu').style.display = 'none';
		expanded = false;
	}
}