function toggleSubMenu(id, allowCollapse)
{
	var submenuDiv = $('#submenu_'+id);
	var submenuArrow = $('#submenu_arrow_'+id);
	
	if(submenuDiv.css("display") == "block" && allowCollapse == true)
	{
		submenuArrow.attr("src", "/SiteCollectionImages/navigation/arrow_down.gif");
		submenuArrow.attr("alt", "Expand");
		submenuDiv.slideUp(function() { submenuDiv.css("display", "none"); });
	}
	else
	{
		submenuArrow.attr("src", "/SiteCollectionImages/navigation/arrow_up.gif");
		submenuArrow.attr("alt", "Collapse");
		submenuDiv.slideDown(function() { submenuDiv.css("display", "block"); });
	}
}