// JavaScript Document
function turnit_show(id){
var ss=document.getElementById(id)
		ss.style.display="";document.getElementById("img_"+id).src="images/jian.gif"
}
function turnit_hid(id){
var ss=document.getElementById(id)
ss.style.display="none"; document.getElementById("img_"+id).src="images/jia.jpg"
}