带CheckBox的TreeView网上出错问题解决办法

问题描述：
TreeView上传到服务器，预览效果发现节点图片不显示、展开合并功能缺失.
解决办法：
　　以下是我个人的解决办法，最终的效果实现了，但是还有一点点小遗憾，就是页面上有基于微软的调用js的报错信息。
CheckBox选择JS，代码是网上找的。

 <script language="javascript" type="text/javascript">
     var Obj_;
     document.onclick=function()
     {
         if(event.srcElement.tagName=="INPUT")
         {
             Obj_=event.srcElement;
             getNextElement(event.srcElement);
         }
     }
     function getNextElement(srcObj)
     {
         var i=0;
         while(srcObj.tagName!="TABLE")
         {
             srcObj=srcObj.parentNode;
             i++;
             if(i>20) break;
         }
         //

         if(srcObj.nextSibling==null)
         {
             selectParentNode(srcObj);
             return;
         }
         if(srcObj.nextSibling.tagName=="DIV")
         {
             var targetObj=srcObj.nextSibling;
             selectThem(targetObj);
         }
 //        else if(srcObj.nextSibling.tagName=="TABLE")
 //        {
 //            //
 //        }
         selectParentNode(srcObj);
     }
     function selectThem(targetObj_)
     {
         var ChexBox_Obj=targetObj_.getElementsByTagName_r("INPUT");
         for(var i=0;i<ChexBox_Obj.length;i++)
         {
             ChexBox_Obj[i].checked=Obj_.checked;
         }
     }
     function selectParentNode(obj)
     {
         while(obj.parentNode.previousSibling.tagName=="TABLE")
         {
             //
             var parentObj=obj.parentNode;
             var ChexBox_brother=parentObj.getElementsByTagName_r("INPUT");
             var counter_=0;
             for(var i=0;i<ChexBox_brother.length;i++)
             {
                 if(ChexBox_brother[i].checked) counter_++;
             }
             //
             var parentNContiner=obj.parentNode.previousSibling;
             var CheckB=parentNContiner.getElementsByTagName_r("INPUT");
             CheckB[0].checked=counter_>0?true:false;
             obj=parentNContiner;
         }
     }
 </script>

展开、合并JS，网上代码修改

 <script language="javascript" type="text/javascript">
 function TreeView_ToggleNode(data, index, node, lineType, children) {
 var img = node.childNodes[0];
 var newExpandState;
 try {
 if (children.style.display == "none") {
 children.style.display = "block";
 newExpandState = "e";
 img.src = "../../images/parts/tree_folder3.gif";
 }
 else {
 children.style.display = "none";
 newExpandState = "c";
 img.src = "../../images/parts/tree_folder4.gif";
 }
 }
 catch(e) {}
 }
 </script>

页面代码：

 <asp:TreeView ID="TreeView_1" ShowCheckBoxes="all" runat="server" ShowExpandCollapse="true" CollapseImageUrl="~/images/parts/tree_folder3.gif" ExpandImageUrl="~/images/parts/tree_folder4.gif" NoExpandImageUrl="~/images/parts/tree_folder3.gif"></asp:TreeView>