IE 6 and Cancel-Button in POST - form

[eluser]sl3dg3hamm3r[/eluser]
Hi there

I've got a strange behaviour by IE 6. Before I proceed with any submitted form, I check if the cancel-button was hit (usually there are always two buttons: save and cancel):

Code:

if ($this->input->post('cancel') !== false) {
   /* 'Cancel' - Button, show overview */
   $this->index();
   return;
}

But in IE 6, the Post-variable 'cancel' is in either way submitted, no matter if it was hit or not. In other words: my application acts in IE 6 as if the cancel-button is hit each time. No chance to save anything. Is there a way to figure out which button was hit if IE 6 was used?

Here the HTML of the button:

Code:

<button name="cancel" type="submit" >Cancel</button>

Sl3dg3