function dropdownul()
	{
		if(!document.getElementById && !document.createTextNode){return;}
		if(document.getElementById('nav'))
		{
			document.getElementById('nav').className+=document.getElementById('nav').className==''?'dhtml':' dhtml';
			var lis,i;
			lis=document.getElementById('nav').getElementsByTagName('li');
			for(i=0;i<lis.length;i++)
			{
				if(lis[i].getElementsByTagName('ul')[0])
				{
					lis[i].className+=lis[i].className==''?'isParent':' isParent';
					lis[i].getElementsByTagName('ul')[0].className+=lis[i].getElementsByTagName('ul')[0].className==''?'hiddenChild':' hiddenChild';
					lis[i].onclick=function(){dropem(this);return false;}
					lis[i].onmouseover=function(){dropem(this);}
					lis[i].onmouseout=function(){dropem(null)}
				}
			}
		}
	}
	function dropem(o)
	{
		var lis,i,childUL;
		lis=document.getElementById('nav').getElementsByTagName('li');
		for(i=0;i<lis.length;i++)
		{
			childUL=lis[i].getElementsByTagName('ul')[0];
			if(childUL)	
			{
				childUL.className=lis[i]==o?childUL.className.replace('hiddenChild','shownChild'):childUL.className.replace('shownChild','hiddenChild');
				lis[i].className=lis[i]==o?lis[i].className.replace('isParent','isActive'):lis[i].className.replace('isActive','isParent');
			} 
		}
		return false;
	}
	window.onload=dropdownul;