var nbimage= 30;
var width;
var height;
var url;
var alte;
function banniere()
{
numimage= Math.round(Math.random()*(nbimage-1)+1);
if (numimage <= 10)
{
gotosite = "";
url = "images/pp.png";
alte = "Affichez vos couleurs!";
}
if (numimage > 10 && numimage <= 20)
{
gotosite = "";
url = "images/pc.png";
alte = "Le web à votre portée";
}
if (numimage > 20)
{
gotosite = "";
url = "images/pm.png";
alte = "Solution d'affaires";
}
document.write('<img src="' + url + '" alt="' + alte + '" />')
}