var active_panel = false;

function expandcontent(id) {
	/* no panel active, set as first section */
	if(active_panel == false)
		active_panel = section;
	
	if(active_panel == id) return;
	
	var e = $('src'+active_panel);

	if(e)
		Element.hide(e);

	Element.show('src'+id);
	
	active_panel = id;
	return true;
}