javascript 求高手看看这段代码我哪里写错了？

Question

基础较差，没找出来。调试也没弄明白。

 1 function GetValue(para) {  
 2      var reg = new RegExp("(^|&)"+ para +"=([^&]*)(&|$)");  
 3      var r = this.substr(this.indexOf("\?")+1).match(reg);  
 4   if (r!=null) 
 5      return unescape(r[2]); 
 6     return null;  
 7  }  
 8     var str = "http://localhost:8080/ArcGIS/mapviewer.jsf?width=1059&height=523&TextString=1B024";
 9      //如果获取本页地址用var str = location.href;    
10  //  alert(str.GetValue("TextString"));
11   var value=str.GetValue("TextString"); 
12   
13 String.prototype.qt = function(query){
14 var queryTask = new QueryTask("http://192.168.0.95:6080/ArcGIS/rest/services/SH001DangRuan1/MapServer");
15 var query = new Query();
16     query.where = "TextString='value'";
17     query.returnGeometry = true;
18    query.outFields=["*"];
19     query.execute(query,handleQueryResults);
20 }
21    
22     String.prototype. handleQueryResults= function(results) {
23        var symbol = new esri.symbol.SimpeFillSymbol(esri.symbol.SimpleFillSymbol.STYLE_SOLID, new esri.symbol.SimpleLineSymbol(esri.symbol.SimpleLineSymbol.STYLE_SOLID, new dojo.Color([0,0,255,0.35]), 1),new dojo.Color([125,125,125,0.35]));
24           };
25    adfdojo.addOnload(qt);

Answer 1

这段代码想干啥，报什么错？