function aleatorio(inferior,superior){
    numPosibilidades = superior - inferior
    aleat = Math.random() * numPosibilidades;
    aleat = Math.round(aleat);
    return parseInt(inferior) + aleat;
} 

function Banner() 
{
var c = new Array();
//http://img170.imageshack.us/img170/4233/bannerebctf6.gif
c[0]= "http://www.blogsperu.com/css/Banner01.jpg";
c[1]= "http://www.blogsperu.com/css/Banner02.jpg";
c[2]= "http://www.blogsperu.com/css/Banner03.jpg";
c[3]= "http://www.blogsperu.com/css/Banner04.jpg";
c[4]= "http://www.blogsperu.com/css/Banner05.jpg";
c[5]= "http://www.blogsperu.com/css/Banner06.jpg";
c[6]= "http://www.blogsperu.com/css/Banner07.jpg";
c[7]= "http://www.blogsperu.com/css/Banner08.jpg";
c[8]= "http://www.blogsperu.com/css/Banner09.jpg";
c[9]= "http://www.blogsperu.com/css/Banner10.jpg";
c[10]= "http://www.blogsperu.com/css/Banner11.jpg";
c[11]= "http://www.blogsperu.com/css/Banner12.jpg";
c[12]= "http://www.blogsperu.com/css/Banner13.jpg";
c[13]= "http://www.blogsperu.com/css/Banner13.jpg";


l = "<img src='" + c[aleatorio(0,c.length - 1)] + "'>";
return l;
}