var how_many_ads = 2;
var now = new Date();
var sec = now.getSeconds();
var ad = sec % how_many_ads;
var bannertorre;
ad +=1;


if (ad==1 || ad==2)
{
	var how_many_subads = 2;
	var nows = new Date();
	var secs = now.getSeconds();
	var subads = secs % how_many_subads;
	subads +=1;

	if (subads==1)
	{
	megabanner="si";
	document.write('<div name=publicidad id=\"megabanner\"><div id=\"iframe\" class=\"mostrar\">');
	var rnd = (new String(Math.random())).substring(2,8) + (((new Date()).getTime()) & 262143);
	document.write('<scri' + 'pt language="JavaScript1.1" type="text/javascript" src="http://ads.us.e-planning.net/eb/3/13e1/7ced1fd1d5821e67?o=j&rnd=' + rnd + '"></scr' + 'ipt>');
	document.write('</div></div>');
	}

	if (subads==2)
	{
	//torre
	bannertorre="si";
	document.write('<div id=\"banner160x600\">');
	var rnd = (new String(Math.random())).substring(2,8) + (((new Date()).getTime()) & 262143);
	document.write('<scri' + 'pt language="JavaScript1.1" type="text/javascript" src="http://ads.us.e-planning.net/eb/3/13e1/fe8ee5cfa3a5ce9f?o=j&rnd=' + rnd + '"></scr' + 'ipt>');
	document.write('</div>');
	}

}