Javascript not acquiring field value

I have 2 php pages, htmldisp.php and classfn.php. And an alert used in hrmldisp.php is not working. It should actually give a dropdown value.

htmldisp.php is

 <?php include("classfn.php"); $obj=new hello;?> 
 <script la开发者_如何学运维nguage="javascript">
  function submitted(){
   var select=document.getElementById('newdrop').value; 
  alert(select);    
 }
 </script>

<?php 
$id="newdrop";
echo $obj->hellofn($id); ?>
<input type="submit" onclick="submitted();"

classfn.php is

   <?php
   class hello{
function hellofn($id){  

    $s="select `Name`,`Value` from `Days`;
    $q=mysql_query($s);
    $p='<td>'.'<select id="$id">';
            while($re=mysql_fetch_array($q)){ 
            $value=$re["Value"];
            $name=$re["Name"];
            $p.='<option value="' . $value . '"' . ( $selected==$value ? ' selected="selected"' : '' ) . '>' . $name . '</option>';
            }
    $p.='</select>'.'</td>';

    return $p;
    } 
           ?>

The problem is alert(select) not working. Thanks

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As far as I can tell you never call the function submitted. On top of that your HTML is completely malformed. You have a bunch of html and javascript outside of your html tag. And you have 2 opening html tags with no close...