var selControl;
var selleft;
function show(id,len)
{
	for(i=0;i<len;i++)
	{   
		document.getElementById('submenu').style.display='none';
	    document.getElementById('submenu'+i).style.display='none';    
    }	 
    document.getElementById('submenu'+id).style.display ='block';	
	//alert(id);
	setCookie('menuSelect',id); 
	setCookie('menuLen',len);
}





function setCookie(name, value)		//cookies设置
{
	var argv = setCookie.arguments;
	var argc = setCookie.arguments.length;
	var expires = (argc > 2) ? argv[2] : null;
	if(expires!=null)
	{
		var LargeExpDate = new Date ();
		LargeExpDate.setTime(LargeExpDate.getTime() + (expires*1000*3600*24));
	}
	document.cookie = name + "=" + escape (value)+((expires == null) ? "" : ("; expires=" +LargeExpDate.toGMTString()));
}

function getCookie(Name)			//cookies读取
{
	var search = Name + "="
	if(document.cookie.length > 0) 
	{
		offset = document.cookie.indexOf(search)
		
		if(offset != -1) 
		{
			offset += search.length
			end = document.cookie.indexOf(";", offset)
			if(end == -1) end = document.cookie.length
			
			return unescape(document.cookie.substring(offset, end))
		 }
	else return ""
	  }
}



var menuSelect=getCookie('menuSelect');
var menuLen=getCookie('menuLen');

if(menuSelect!=null  && menuLen!=null)
  {  show(menuSelect,menuLen );
  }
    else
    {
    show(0,1 );
    }