PHP loop increments greater than 1

Hi Folks,

I am trying to get a drop down menu to populate in increments of 10 and I can't seem to get it. It must be easy but searching the net doesn't seem to get me anywhere.

here's what I have at present:

----------------------------------------------------------------

<select name="distance_miles" class="formrightcolumnnarrow" id="distance_miles">

  <?php

  for( $i=0; $i<=1000; $i++ )

{?>

<option value="<?php echo$i;?>"><?php echo$i;?>

<?php ;} ?>

  </option>

  </select>

----------------------------------------------------------------

if I do the obvious and change $i++ to $i+10 the browser hangs.

Can anyone give me a clue how to make it work for a higher increment than 1?

Cheers

Dave