How put ads in my games?

I use html_div(plugin) to show the ad in the game, but when I play I can't play because only show the ad in the screen.

My type of ad is this : <script type="text/javascript" src="http://ad.leadboltads.net/show_app_ad.js?section_id=485550827"></script>

If anyone can help my to show the ad in the bottom of the screen and play the game on the same time.

Anyone know how to do?

Hi, i put the code in the index.html file, just before the </body> tag. It's the web code from admob that i embed.