问个怎么调用.ashx里面的输出内容，以前调用过，一时忘记了!!

[Toti]

<%@ WebHandler Language="C#" Class="ScriptHandler" %>

ScriptHandler.ashx

using System;
using System.Web;

public class ScriptHandler : IHttpHandler {

public void ProcessRequest (HttpContext context) {
context.Response.ContentType = "text/plain";
context.Response.Write("Hello World");
context.Response.End();
}

public bool IsReusable {
get {
return true;
}
}

}

Line_Add.aspx
我先引进
<script type="text/javascript" src="../../Js/ScriptHandler.ashx"></script>
<script language="javascript" type="text/javascript">
<!--
function checkLineNameIsExists(Obj)
{
el('testlinename').innerHTML="";

if(Trim(Obj.value.replace("'","")) !="")
{
el('testlinename').innerHTML=" <img src=\"../../Js/loading_16x16[1].gif\" align=\"absmiddle\" /> <font color='#999'>正在检测线路名中。。。</font>";
var lineName=Trim(Obj.value.replace("'",""));

var returnValue="Hello World";
alert(returnValue);

}
}
//-->
</script>

我想把ScriptHandler.ashx中的"Hello World"，负值给JS里面的变量returnValue该怎么写？？

[Toti]

怎么没有人这样用过吗?/还是不明白我的意思呢??

[Toti]

怎么没有人回答呢？？

[EASTENRIVER]

参考一下，也许类似
http://www.gispower.org/article/supermap/is/2007/116/0711610341EKJB51H7FC0GKAAH670E.html