PHP Submit Input Problems

["stuart1231" <webforumsuser@xxxxxxxxxxxxxx>]

Hi,
 I am having a big problem with PHP, I wish to submit a form to either 'Update' 
or 'Delete' a record, it works fine in Firefox and Safari but not Internet 
Explorer.

 Here is a basic code example.


 Working version http://saawcomputing.co.uk/form-test.php

 <form action="form-test.php" method="post">
 <input type="image" src="3SM/admin/media/update1.gif" name="button" 
value="update" />
 <input type="image" src="3SM/admin/media/delete1.gif" name="button" 
value="delete" />




 </form>

 <?php

 if (isset($_POST['button']))
        {
                
                if ($_POST['button'] == "update")
                        {
                                echo "Will update";
                        } else {
                                echo "Will delete";
                        }
        }

 ?>