Description:
------------
Using: I.E. 6, Firefox 2.0.0.1 and Opera 9, PHP 4.4.4, IIS 5.1 on XP PRO (development machine) and IIS 5 on Windows 2000 Server (production server).

When using an input type of 'image' to submit a form, the name value is not initialized by my switch() script. If I change this to a standard input type of 'submit', the variable is initialized and recognized just fine:


Reproduce code:
---------------
//DOES NOT work
<input type="image" src="/images/pic.jpg" name="somevalue" />

if(!empty($_POST['somevalue'])) {
  switch($_POST['hiddenfieldname']) {

     case 'somecase':

      include 'page1.php';
      break;
}
}
else {
     include 'page2.php';
}


//Works Fine
<input type="submit" name="somevalue" value="Submit" />

if(!empty($_POST['somevalue'])) {
  switch($_POST['hiddenfieldname']) {

     case 'somecase':

      include 'page1.php';
      break;
}
}
else {
     include 'page2.php';
}




Expected result:
----------------
Script should include() page1.php

Actual result:
--------------
Includes() page2.php