var img_width = "468";
var img_height = "30";
var img_title = "Haz click aquí!";

var ad=new Array()
//insert here your images src
ad[0]='anuncios/images/banner-banesto468x30.gif';
ad[1]='anuncios/images/468x30_neumaticos-online.gif';
ad[2]='anuncios/images/468x30_record-rentacar.gif';
ad[3]='anuncios/images/468x30_edreams.gif';
ad[4]='anuncios/images/468x30_hertz.gif';

var links=new Array()
//insert here your links
links[0]='http://www.netfilia.com/contenidos/redirect.html?img=1&contenido=11688&web=40265&id=hiP4LZFA1XUOI';
links[1]='http://clk.tradedoubler.com/click?p=63029&a=1498503&g=17237020';
links[2]='http://clk.tradedoubler.com/click?p=17349&a=1498503&g=146264';
links[3]='http://clk.tradedoubler.com/click?p=15407&a=1498503&g=176945';
links[4]='http://clk.tradedoubler.com/click?p=37057&a=1498503&g=17222822';

var xy=Math.floor(Math.random()*ad.length);

document.write('<a href="'+links[xy]+'" target="_blank"><img border=0 class="sombra468" src="'+ad[xy]+'" width="'+img_width+'" height="'+img_height+'" alt="'+img_title+'"></a>');