Hi, i am giving u one suggestion that may be help u solve the problem remove Enabled="False" From chk2 and add one function on body onload example <body > <form id="SampleForm" method="post" runat="server" > <table width="100%"> <tr> <td width="75%" style="HEIGHT: 19px"> <asp:CheckBox ID="chk1" Text="" AutoPostBack="false" title="Will You need a translator for your engagement (charges may apply)" Runat="server" tabIndex="10" Enabled="true"></asp:CheckBox> </td> <td width="75%"> <asp:CheckBox ID="chk2" Runat="server" tabIndex="10" ></asp:CheckBox> </td> </tr> </table> </form> </body> _javascript_ functions function TRChecked() { if(document.SampleForm.chk1.checked == true) { document.SampleForm.chk2.disabled =false; } else { document.SampleForm.chk2.disabled =true; } } function TranslationRequiredChecked() { if(document.SampleForm.chk1.checked == true) { document.SampleForm.chk2.disabled =false; } else { document.SampleForm.chk2.disabled =true; } } Regards @jaykagr | 
