I apologize in advance, I am a PHP noob!

I have form with some hidden fields. I need the values to POST to "submit_rma.php" so that they're not missing from the db--I need $qty, $estmate_id and $rma_type.

The rest of the fields are just displaying data for the user and are readonly. Currently I only get value from the qty text field.

Is there any easier way to pass these values? URL is out of the question due to security issues.

<form method="post" action="submit_rma.php";> 
<table>
   <tr>
      <td>
         Quantity
      </td>
      <td>
         <input type="text" name="qty" value="<?php echo $qty ?>" size="1"/><br/>
      </td>
   </tr>
   <tr>
      <td>
          Part #
      </td>
      <td>
         <input type="text" name="" value="<?php echo $model ?>" size="8" READONLY/><br/>
      </td>
   </tr>
   <tr>
      <td>
         Description
      </td>
      <td>
         <input type="text" name="" value="<?php echo $name_EN ?>" size="50" READONLY/><br/>
      </td>
   </tr>
   <tr>
      <td>
         Paid Date
      </td>
      <td>
         <input type="text" name="" value="<?php echo $sold_date ?>" size="6" READONLY/><br/>
      </td>
   </tr>
   <tr>
      <td>
         Amount Each
      </td>
      <td>
         <input type="text" name="" value="<?php echo $dealer_price ?>" size="8" READONLY/>
      </td>
   </tr>
</table>
         <input type="hidden" name="estmate_id" value="<?php echo $estmate_id ?>">
         <input type="hidden" name="rma_type" value="Short Shipped">
         <input type="submit" name="submit";">
</form>