var how_many_ads = 1;
var now = new Date()
var sec = now.getSeconds()
var ad = sec % how_many_ads;
ad +=1;
if (ad==1) 
{
/*
document.write('<div id=publicidad name=publicidad class=\"banner\" align=\"left\"><span class=\"texto9\">PUBLICIDAD</span><img src=\"/data/images/bullets/trianguloPublicidad.gif\" width=\"9\" height=\"10\"><div align=\"center\">')
document.write('<object classid=\"clsid:D27CDB6E-AE6D-11cf-96B8-444553540000\" codebase=\"http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0\" width=\"129\" height=\"240\">')
document.write('<param name=\"movie\" value=\"/data/recursos/banners/IUP_feb07_129_240.swf\">')
document.write('<param name=\"quality\" value=\"high\">')
document.write('<embed src=\"/data/recursos/banners/IUP_feb07_129_240.swf\" quality=\"high\" pluginspage=\"http://www.macromedia.com/go/getflashplayer\" type=\"application/x-shockwave-flash\" width=\"129\" height=\"240\"></embed>')
document.write('</object>')
document.write('</div></div>')
*/
}