php - Javascript not working in AJAX response -

below code ajax response page. have added onclick event table row , written javascript code handle it. javascript code doesn't work.is wrong way of coding or there problem in code. suggest me simple solution

<?php  echo '<script type=\"text/javascript\">     function clicked(){       alert("i alert box!");     }     </script>'; $q = $_get['q']; include 'db_connect.php'; $sql="select name,address,mobile,email,pan,tan client name = '$q'"; $sql_bill="select clientname,financialyear,receiptno,amount,ddate,type,chequeno,category billing clientname = '$q'"; $sql_total="select sum(amount) totalamount billing"; $result = mysql_query($sql);  $result_bill = mysql_query($sql_bill); $result_total = mysql_query($sql_total); $total= mysql_fetch_array($result_total); echo "<h4><b>client details</b></h4><table align='center' border='2'>     <tr>         <th>name</th>         <th>address</th>         <th>mobile</th>         <th>email</th>         <th>pan</th>         <th>vat tin</th>     </tr>";  while($row = mysql_fetch_array($result)) {   echo "<tr>";   echo "<td>" . $row['name'] . "</td>";   echo "<td>" . $row['address'] . "</td>";   echo "<td>" . $row['mobile'] . "</td>";   echo "<td>" . $row['email'] . "</td>";   echo "<td>" . $row['pan'] . "</td>";   echo "<td>" . $row['tan'] . "</td>";   echo "</tr>"; } echo "</table>"; echo "<h4><b>payment received details</b></h4><table align='center' border='2'>     <tr>         <th>client name</th>         <th>financial year</th>         <th>receipt no</th>         <th>date</th>         <th>type</th>         <th>chequeno</th>         <th>category</th>         <th>amount</th>     </tr>";  while($row = mysql_fetch_array($result_bill)) {   echo "<tr onclick=\"clicked()\">";   echo "<td>" . $row['clientname'] . "</td>";   echo "<td>" . $row['financialyear'] . "</td>";   echo "<td>" . $row['receiptno'] . "</td>";   echo "<td>" . $row['ddate'] . "</td>";   echo "<td>" . $row['type'] . "</td>";   echo "<td>" . $row['chequeno'] . "</td>";   echo "<td>" . $row['category'] . "</td>";   echo "<td>" . $row['amount'] . "</td>";   echo "</tr>"; }  echo "<tr>"; echo "<td colspan=7>total</td>"; echo "<td>".$total['totalamount'].  "</td>"; echo "</tr>";  echo "</table>";  ?> 

try instead of script code:

echo <<<eod   <script type="text/javascript">     function clicked(){       alert("i alert box!");     }   </script> eod;