iam using two checkbox inside the gridview, when i select one of the checkboxes the second box should automatiocally checked

Thanx in advance
Nithya

iam using two checkbox inside the gridview, when i select one of the checkboxes the second box should automatiocally checked

Thanx in advance
Nithya

<asp:TemplateField HeaderText="Read">
                            <HeaderTemplate>
                                <asp:Label runat="server" Text="Read"></asp:Label>
</HeaderTemplate>
                            <itemstyle horizontalalign="Center" />
                            <ItemTemplate>
                                <asp:CheckBox ID="chkRead" runat="server" onclick="ChkReadClick(this)"/>
</ItemTemplate>
                        </asp:TemplateField>

and

<script language="javascript">
    function ChkReadClick(obj)
    {
        var table = document.getElementById("GVFunction");
        for (i = 1; i < table.rows.length; i++)
	    {
            var ChkRead = table.rows[i].cells[2].getElementsByTagName("input")[0];
            if(ChkRead.name==obj.name)
            {
               if(ChkRead.checked)
               {
                   var ChkAdd = table.rows[i].cells[3].getElementsByTagName("input")[0];
                    ChkAdd.checked = true; 
               }
               break;
            }
        }
    }
    </script>

Thanks,

Kusno.

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