<html>
<body>
<table width="200" border="1" id="tb">
<tr id="r1">
<td><input type="checkbox" name="ck" value="1"></td>
<td>abc</td>
</tr>
</table>
<p>
<input type="button" onClick="add();" value="add"/> ......
<asp:TextBox ID="TextBox1" runat="server" onkeydown="return NotAllowSpace(this);"/></asp:TextBox>
<mce:script type="text/javascript" language="javascript"><!--
function NotAllowSpace(e)
{
var keyVal =(window.event) ? event.keyCode : e.keyCode; ......
