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>