document.write('<iframe marginheight="0" marginwidth="0" src="http://www.tentalis.com/banners/exo.html" allowtransparency="yes" scrolling="no" frameborder="0" height="250" width="300"></iframe>'); 

document.write('<br><br>'); 

document.write('<a target="_blank" href="http://www.gaterio.com"><img border="0" src="http://www.tentalis.com/banners/300x250-diego.gif" width="300" height="250"></a>'); 

document.write('<br><br>'); 

document.write('<iframe marginheight="0" marginwidth="0" src="http://www.astrolabio.net/bannerserver/300x250-iw.html" allowtransparency="yes" scrolling="no" frameborder="0" height="250" width="300"></iframe>'); 

document.write('<br><br>');

document.write('<iframe marginheight="0" marginwidth="0" src="http://www.astrolabio.net/banners/eviral.html" allowtransparency="yes" scrolling="no" frameborder="0" height="250" width="300"></iframe>');