The following code was working very well. Suddenly, the Edit button click stopped working. When the user used to click Edit button, a JSON code executed. But it is not recognizing the click now. Something happened accidentally? Please assist.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
    <head>
     <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"></meta>
     <script type="text/javascript" src="js/jquery.min.js"></script>
     <script type="text/javascript" src="js/jquery.cookie.js"></script>
     <script src="js/calendar.js" type="text/javascript"></script>
     <link href="js/calendar.css" type="text/css" rel="stylesheet" />
     <link rel="stylesheet" href="css/wysiwyg.css" type="text/css">
     <script type="text/javascript" src="js/wysiwyg.js"></script>
     <script type="text/javascript" src="js/wysiwyg-settings.js"></script>
     <!-- JSON implementation to get data through JQuery/AJAX -->
     <script type="text/javascript">
       $(document).ready(function(){
        $("#Edit").click(function(){
          $.getJSON("fetchvalues.php?UpdateRecordID=" + $.cookie('UpdateRecordID'),
                function(data){
          //Fill the Form with the data values 
          document.getElementById('LDate').value = data[0];
          document.getElementById('Places').value = data[1];
          document.getElementById('Company').value = data[2];
          document.getElementById('Designation').value = data[3];
          document.getElementById('ProjectDetails').value = data[4];
          document.getElementById('DesiredCandidate').value = data[5];
          document.getElementById('HRName').value = data[6];
          document.getElementById('HRContact').value = data[7];
          document.getElementById('Email').value = data[8];
         });
        });
       });
     </script>
     <title>Job Listing Entry</title>
    </head>
    <body>
     <table id="main" cols="2">
     <tr> 
     <td>
     <Form id="frmNewEntry" method="post" action="insert_listing.php">
      <table id="tblEntry" cols="3" style="border-color:lightblue; border-style:solid;">
       <tr><td colspan="3" bgcolor="lightblue" align="center"><strong>Real-Time Vacancy Entry</strong></td></tr>
       <tr><td>Date:</td><td><input id="LDate" name="LDate" type="text" size="20" maxlength="11"/>[Select Date from the Calendar Control]
        <script type="text/javascript">
         WYSIWYG.attach('all', full);
         calendar.set("LDate");
        </script></td>
        <td>
         <table>
          <tr>
           <td rowspan="6">
           <!-- <iframe src="show_db_vacancy_entries.php" height="800px" width="300px" bordercolor="cyan">
            </iframe> -->
           </td>
          </tr>
         </table>
        </td>
       </tr>
       <tr><td>Places:</td><td><input id="Places" name="Places" type="text" size="35" maxlength="30" onblur="this.value=MakeInitialCapital(this.value);"></td></tr>
       <tr><td>Company:</td><td><input id="Company" name="Company" type="text" size="50" onblur="this.value=MakeInitialCapital(this.value);">
       <!-- <input type="button" value="Make Initial Capital" align="left" onclick="this.value=MakeInitialCapital(this.value);"></tr> -->
       <tr><td>Designation:</td><td><input id="Designation" name="Designation" type="text" size="50" onblur="this.value=MakeInitialCapital(this.value);"></td></tr>
       <tr><td>Project Details:</td><td><textarea id="ProjectDetails" name="ProjectDetails" cols="100" rows="10"></textarea></td></tr>
       <tr><td>Desired Candidate:</td><td><textarea id="DesiredCandidate" name="DesiredCandidate" rows="3" cols="100"></textarea> <br></td></tr>
       <tr><td>HR Name:</td><td><input id="HRName" name="HRName" type="text" size="50" onblur="this.value=MakeInitialCapital(this.value);"> <br></td></tr>
       <tr><td>HR Contact:</td><td><input id="HRContact" name="HRContact" type="text" size="50"> <br></td></tr>
       <tr><td>Email:</td><td><input id="Email" name="Email" type="text" size="50"> <br></td></tr>
       <tr></tr>
       <tr>
        <td  bgcolor="lightblue">
         <input id="Clear" name="Clear" value="Clear" type="button" onclick="ClearFields();">
        </td> 
        <td bgcolor="lightblue">
         <input id='Submit' name='Submit' value='Submit' type='submit' />
        </td>
       </tr>
      </table>
     </Form>
     </td>
     <td>
      <table id="list" cols="2" style="border:none">
       <tr>
        <td colspan="2" style="border:none">
         <iframe src="show_db_vacancy_entries.php" height="600px" style="border:none;">
         </iframe>
        </td>
       </tr>
       <tr>
        <td align="left">
         <input id="Edit" name="Edit" value="Edit Record" type="button"  />
        </td>
        <td align="right">
         <input id="Delete" name="Delete" value="Delete" type="button" />
        </td>     
       </tr>
      </table>
     </td>
     </tr>
     </table>
    </body>
</html>
<script language="JavaScript" type="text/javascript">
    function MakeInitialCapital(str)
    {
       return str.toLowerCase().replace(/\b[a-z]/g, cnvrt);
        function cnvrt() {
            return arguments[0].toUpperCase();
        }
    }
    //Convert initials to capital in a certain control
    function MakeInitialCapitalControl(controlName)
    {
    var ctrl = document.getElementById(controlName).value;
    if(/^[A-Z]/.test(ctrl.value)) {
        ctrl.value = ctrl.value.toLowerCase();
        return;
    }        
   /* ctrl.value = ctrl.value.toLowerCase().replace(/\b[a-z]/g, function {
        return arguments[0].toUpperCase();
    });*/
    }
    function ClearFields()
    {
     document.getElementById('Email').value = "";
     document.getElementById('HRContact').value = "";
     document.getElementById('HRName').value = "";
     document.getElementById('DesiredCandidate').value = "";
     document.getElementById('ProjectDetails').value = "";
     document.getElementById('Designation').value = "";
     document.getElementById('Company').value = "";
     document.getElementById('Places').value = "";
     document.getElementById('LDate').value = "";
    }
</script>