I have been working with Rich Text Editors on a single webform, when I insert text in each of the Rich Text Editor and press the save button, the page become unresponsive. In database the value of...

<FTB:FreeTextBox ID="txtSkills" runat="server" Width="1040px" Height="150px">
</FTB:FreeTextBox>

                </td>

                 </tr>
                 <tr>
                 <td><h4 style="color: #666666; font-size: medium; font-family: Arial, Helvetica, sans-serif; font-weight: bold;" >Learning Outcomes:</h4></td></tr>
                  <tr><td>
                 <FTB:FreeTextBox ID="txtLearningOutcome" runat="server" Width="1040px" Height="150px">
</FTB:FreeTextBox></td></tr>
                  <tr>

                <td>
                    <h4 style="color: #666666; font-size: medium; font-family: Arial, Helvetica, sans-serif; font-weight: bold;">
                        Resources:</h4>
                      </td></tr>

                    <tr>
                        <td>
                            <FTB:FreeTextBox ID="txtRes" runat="server" Height="150px" Width="1040px">
                            </FTB:FreeTextBox>
                        </td>
                    </tr>
                  <tr>

                <td><h2 style="color: #666666; font-size: large; font-family: Arial, Helvetica, sans-serif; font-weight: bold;" >Approach and Methodology</h2></td></tr>

<tr>
<td><h4 style="color: #666666; font-size: medium; font-family: Arial, Helvetica, sans-serif; font-weight: bold;" >  a. Warm-up (Presentation):</h4></td></tr>
<tr><td>
<FTB:FreeTextBox ID="txtWarmUpPre" runat="server" Width="1040px" Height="150px">
</FTB:FreeTextBox>
</td>

                 </tr>




                 <tr><td><h4 style="color: #666666; font-size: medium; font-family: Arial, Helvetica, sans-serif; font-weight: bold;" > b. Practice:</h4></td></tr>
                 <tr><td>
                 <FTB:FreeTextBox ID="txtPractice" runat="server" Width="1040px" Height="150px">
</FTB:FreeTextBox></td>
                 </tr>

                 <tr><td><h4 style="color: #666666; font-size: medium; font-family: Arial, Helvetica, sans-serif; font-weight: bold;" > c. Production:</h4></td></tr>
                 <tr><td>
                 <FTB:FreeTextBox ID="txtProduction" runat="server" Width="1040px" Height="150px">
</FTB:FreeTextBox></td>
                 </tr>

                 <tr><td><h4 style="color: #666666; font-size: medium; font-family: Arial, Helvetica, sans-serif; font-weight: bold;" >Vocabulary:</h4></td></tr>
                 <tr><td><FTB:FreeTextBox ID="txtVocab" runat="server" Width="1040px" Height="150px">
</FTB:FreeTextBox></td></tr>


 <tr><td><h4 style="color: #666666; font-size: medium; font-family: Arial, Helvetica, sans-serif; font-weight: bold;" >Teaching and Learning Evaluation:</h4></td></tr>
                 <tr><td><FTB:FreeTextBox ID="txtTeachingEval" runat="server" Width="1040px" Height="150px">
</FTB:FreeTextBox></td></tr>


 <tr><td><h4 style="color: #666666; font-size: medium; font-family: Arial, Helvetica, sans-serif; font-weight: bold;" >Assessment Criteria:</h4></td></tr>
                 <tr><td><FTB:FreeTextBox ID="txtAssCriteria" runat="server" Width="1040px" Height="150px">
</FTB:FreeTextBox></td></tr>

                 </table>