Random ads code on header ad
I'm using iframe+php random ads script like this:
<iframe marginwidth="0" marginheight="0" width="468" height="60" scrolling="no" frameborder=0 src="http://www.growgearexpo.com.com/ads/randomad.php">
</iframe>
but it won't work on header ad, can you find out why?
It works great on other site....