急啊,那位老兄帮帮我
<%@ Page Language= "C# " AutoEventWireup= "true " CodeFile= "img.aspx.cs " Inherits= "img " %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN " "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
<html xmlns= "http://www.w3.org/1999/xhtml " >
<head runat= "server ">
<title> 无标题页 </title>
<script language= "javascript " type= "text/javascript ">
function myclick(srcelement)
{
var targetid,srcelement,targetelement;
var strbuf;
if(srcelement.className == "outline ")
{
targetid = srcelement.id+ "d ";
targetelement = document.all(targetid);
if(targetelement.style.display== "none ")
{
strbuf = srcelement.src;
if(strbuf.indexOf( "plus.gif ")> -1)
{
srcelement.scr = "menu/tree_minusl.gif ";//图片为减号
targetelement.style.display= ' ';
}
else
{