function hover_wb_menu(obj,is_hovered)
{
	var img_id = obj.id + "_bullet";
	var img = document.getElementById(img_id);
	if (is_hovered)
		img.src = "images/leftnav/menubullet_hover.gif";
	else 
		img.src = "images/leftnav/menubullet_unhover.gif";
}