function selected(opt)
{

	var menu = document.getElementById('menu');
	
	var URL = document.location.href;
	
	var links = menu.getElementsByTagName('a');
	
	if(opt != undefined)
	{
		links[0].className = 'selected';
	}
	else
	{
		for(i=0;i<links.length;i++)
		{
			if(links[i].href == URL)
			{
				links[i].className = 'selected';
			}
		}
	}
	
}