function choices()
{
//elegir el numero de banner que se desean insertar, ej: 6
this[0] = 1;
// PRIMER BANNER, Tradedoubler DELL texto
this[1] = '<a href="http://clk.tradedoubler.com/click?p=4326&a=287784&g=871558&url=http://adfarm.mediaplex.com/ad/ck/2404-54910-3840-1?!mpro=http://lt.dell.com/lt/lt.aspx?CID=5212&LID=122756&DGC=AF&DGSegHS&ACD=^^&AID=¤¤&DURL=http%253A//www1.euro.dell.com/content/topics/promo.aspx/promocompare%253Fc%253Des%2526cs%253Desdhs1%2526l%253Des%2526s%253Ddhs%2526%257Eck%253Danavml%2526dgc%253DAF%2526cid%253D6500%2526lid%253D167780" style="text-decoration:none" target="_blank"><font color="#008080" "font-size: 10 px; font-family: Verdana">DELL: Vea todas las ofertas excepcionales para compras por internet en ordenadores de sobremesa y portátiles, accesorios, periféricos, .... </font><font color="#0000B9">  Más información.</font></a>';

//si se pone arriba ej: 7 aqui añadir this[7]=' codigo ';
}
function popUpBanner(list)
{
var today = new Date();
var choiceInstance = new choices();
var Banner = choiceInstance[(today.getSeconds() % choiceInstance[0]) + 1];
}
function grabBanner()
{
var today = new Date();
var choiceInstance = new choices();
var Banner = choiceInstance[(today.getSeconds() % choiceInstance[0]) + 1];
return Banner;
} document.writeln(grabBanner());