To create lost password page for wordpress

<code><?php
/**
 *Template Name: Forget Password
 The template for displaying all pages.
 *
 * This is the template that displays all pages by default.
 * Please note that this is the WordPress construct of pages
 * and that other 'pages' on your WordPress site will use a
 * different template.
 *
 * @package WordPress
 * @subpackage Twenty_Eleven
 * @since Twenty Eleven 1.0
 */

get_header(); ?>
<?php get_sidebar(); ?>
<script type = 'text/javascript'>

     function join_team()
{
   
    var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;   
    if(reg.test(document.getElementById("email_user").value) == false)
    {
    alert("Please enter a valid email");
    document.getElementById('email_user').focus();
    return false;
    } 
}
</script>
<?php
function createRandomPassword() {
    $chars = "abcdefghijkmnopqrstuvwxyz023456789";
    srand((double)microtime()*1000000);
   $i = 0;
    $pass = '' ;
    while ($i <= 7) {

        $num = rand() % 33;

        $tmp = substr($chars, $num, 1);

        $pass = $pass . $tmp;

        $i++;
    }
    return $pass;
}
// Usage






if(isset($_REQUEST['forgetpwd']) )
    {
    $password = createRandomPassword();
        $mail_address = $_REQUEST[email_user];
        $query = "select * from wp_users where user_email='".$mail_address."'";
        //echo     $query;
        $rs   = mysql_query($query);
        $row  = mysql_fetch_assoc($rs);
        $newpwd = md5($password );
       
        if($row['user_email']==$mail_address)
        {
            $query1 =  "update  wp_users set user_pass='".$newpwd."' where user_email ='".$mail_address."'";
            ///echo $query1;
            $row1 = mysql_query($query1);
            $to      = $mail_address;          //brokeremail
            $from     =  "Info@ledworld.com";                 //visitoremail
            $subject ="Forgot Password";
            $message = "";
            $message .= "Dear ".$row['user_login'].",<br><br>Your Login information along with password is as mentioned below :<br><br>";
            $message .= "Username    : ".$row['user_login']."<br>";
            $message .= "Password    : ".$password."<br>";
            //$message .= "Message : ".$_POST['txtmsg']."<br>";
            //$message .="File : ".$_POST['upfile']."<br>";
            $message .= "<br><br><br>Thank You ,<br> Support Team";
                $message;
                    $headers ="MIME-Version: 1.0" . "\r\n";
                    $headers .="Content-type:text/html;charset=iso-8859-1" . "\r\n";
                    $headers .="From: $from" . "\r\n";
                    $abc=@mail($to,$subject,$message,$headers);
                    if($abc)
                    {
                      echo " <script>alert('mail send'); window.location='/wordpress/ledworld/login/'</script>";
                    }
                    else
                    {
                     echo "<script>alert('Mail send Succesfully');</script>";
                     echo "<div class = 'email_msg' >".$msg = "Email Send Sucessfully". "</div>";
                   
                      //echo "<script>window.location='?page_id=121&action=forget'</script>";
                      echo "<script>window.location='/wordpress/ledworld/lost-password/'</script>";
                    }
        }
        else
        {
       
        $error_msg =  "Email Address is not exists in our record";
        }
    }
?>
   <div class="c_right">
<div class="c_heading">Lost Password</div>
           <div class="login">
       
       
           
           
            <table width="100%" border="0" cellspacing="0" cellpadding="0">
            <form method = "post" action = "" onsubmit = 'return join_team();'/>
            <tr>
      <td colspan ="3" align = "center">
    <?php if($error_msg!="")
    {?>
    <span style = "color:red;adding-left: 49px;"><?php echo $error_msg; ?></span>
    <?php
    }
    ?>
        </td>
  </tr>
  <tr>
    <td width="39%" align="right">Email:</td>
    <td width="1%" height="35">&nbsp;</td>
    <td width="60%">
        <input name="email_user" type="text" id = "email_user" class="form_fild" />    </td>
  </tr>
   <tr>
    <td align="right">&nbsp;</td>
    <td height="">&nbsp;</td>
    <td valign="bottom"><input type = "hidden" name = "forgetpwd"/><input type = "image"  src="<?php bloginfo('template_url');?>/images/getpassword.png" alt="" width="141" height="26" /></td>
  </tr>
</table>
</form>
</div>
      </div>

<?php get_footer(); ?></code>