如何样实现treeview的联动

怎么样实现treeview的联动啊
怎么样实现treeview的联动啊

[解决办法]
<asp:TreeView ID="tvSGMT" runat="server" Height="100%" ShowCheckBoxes="All" ShowLines="True" onclick="OnTreeNodeChecked()" >
</asp:TreeView>

JScript code

<script language="javascript" type="text/javascript">    function OnTreeNodeChecked()     {         var ele = event.srcElement;         if(ele.type=='checkbox')         {             var childrenDivID = ele.id.replace('CheckBox','Nodes');            var div = document.getElementById(childrenDivID);             if(div != null)            {                var checkBoxs = div.getElementsByTagName('INPUT');                 for(var i=0;i<checkBoxs.length;i++)                 {                     if(checkBoxs[i].type=='checkbox')                     checkBoxs[i].checked=ele.checked;                 }            }                    }     }</script >