父頁面：

<input id="btnSelect" type="button" value="..."  onclick="organTree('txt_GLJG','hid_gljg');" class ="btn" />

<script type="text/javascript" language="javascript">
     function organTree(para,para1)
     {
     var orgid=document.getElementById('lblOrgid').value ;
    var iTop = Math.ceil((window.screen.height-300)/2);       
    var iLeft =Math.ceil((window.screen.width-500)/2);   
    window.open("OrgList.aspx?pid="+para+"&pid1="+para1+"&orgid="+orgid,"", "height=300, width=500,top="+iTop+",left="+iLeft+"");
     }
    </script>

子頁面：

protected void btnOK_Click(object sender, EventArgs e)
    {
        Response.Write("<script> window.opener.document.getElementById('txt_GLJG').value='" + this.treeInstitution.SelectedNode.Text + "';window.opener.document.getElementById('hid_gljg').value='" + this.treeInstitution.SelectedNode.Value  + "'; window.close(); </script>");
    }