function wmenu(obj)
{
	try
	{
		var dt = obj.parentNode;
		var len = dt.childNodes.length;
		for(i=0;i<len;i++)
		{
			if(dt.childNodes[i].tagName == 'DD')
			{
				dt.childNodes[i].style.display='block';
			}
		}
	}
	catch(e)
	{
		//alert(e.description);
	}
}
var currentdl = null;
var currentli = null;
window.onload=function()
{
	try
	{
		var li = document.getElementById('menuleft').getElementsByTagName('li');
		var lilen = li.length;		
		for(var i=1;i<lilen;i++)
		{
			li[i].onclick = function()
			{
				if(currentli != null)
				{
					var dl = currentli.getElementsByTagName('dl');		
					var dllen = dl.length;
					for(i=0;i<dllen;i++)
						dl[i].style.display = "none";
				}
				currentli = this;
				var dl = this.getElementsByTagName('dl');		
				var dllen = dl.length;
				for(i=0;i<dllen;i++)
					dl[i].style.display = "block";
			}
			
			//获取li下的DT
			var dl = li[i].getElementsByTagName('dl');
			var dllen = dl.length;
			for(j=0;j<dllen;j++)
			{
				dl[j].onclick = function()
				{
					if(currentdl!= null)
					{
						dl = currentdl.getElementsByTagName('dd');	
						for(l=0;l<dl.length;l++)
						{
							dl[l].style.display = 'none';
						}
					}
					currentdl = this;
					dl = this.getElementsByTagName('dd');

					for(l=0;l<dl.length;l++)
					{
						if(dl[l].style.display == 'block')
							dl[l].style.display = 'none';
						else
							dl[l].style.display = 'block';
					}
				}
			}
			/*
			(function()
			{
				var j=i;
				li[i].onmouseover=function(){
					var le = li[j].getElementsByTagName('dd');
					var dt = li[j].getElementsByTagName('dt')[0];
					dt.onmouseover = function(){						
						for(var k =0;k<le.length;k++){
							le[k].style.display = 'block';
						}	
					}
				}
			})();
			*/
		}
	}
	catch(e)
	{
		alert(e.description);;
	}
}