// JavaScript Document
function displaySubMenu(li) 
{ 
	var subMenu = li.getElementsByTagName("span")[0]; 
	subMenu.style.display = "block"; 
} 
function hideSubMenu(li) 
{ 
	var subMenu = li.getElementsByTagName("span")[0]; 
	subMenu.style.display = "none"; 
} 
function fenye()
{
	alert("已经是最后一页");
	
}
function fenye2()
{
	alert("已经是第一页");
	
}