Refresh

Hi
I have a webcam on my page i was using meta refresh to refresh the page but i want to use a button i have tried bellow but to no joy do you know how a page can be refreshed using a button

...cm




<CENTER>
<input type="button" value=" Refresh "refresh">
</CENTER>

Answer
Well this is how you do it if anyone wants to know
<CENTER>
<FORM>
<input type="button" value="Refresh" onClick="history.go(0)">
</FORM>
</CENTER>