function toggleMenu()
{
	obj = document.getElementById("nav_links");
	if(!obj)
		return;
		
	if(obj.style.display == "none" || obj.className == 'hide')
	{
		//obj.style.display = "block";
		
		$('#nav_links').slideDown('fast');
		//$("#nav_links").show();
		$("#menu_close").css("background-image","url(images/layout/menu_close.png)");
		$("#menu_close").attr("class","void");
	}
	else
	{
		//obj.style.display = "none"; 
		
		$('#nav_links').slideUp('fast');
		//$("#nav_links").hide;
		$("#menu_close").css("background-image","url(images/layout/menu_top.png)");
		$("#menu_close").attr("class","start_closed");
	}
}