// JavaScript Document

var nbimage= 40;
var width;
var height;
var url;
var alte;
function banniere()
{
numimage= Math.round(Math.random()*(nbimage-1)+1);
if (numimage <= 10)
{
gotosite = "";
url = "images/centre/centre0.jpg";
alte = "Centre0";
}
if (numimage > 10 && numimage <= 20)
{
gotosite = "";
url = "images/centre/centre1.jpg";
alte = "Centre1";
}
if (numimage > 20 && numimage <= 30)
{
gotosite = "";
url = "images/centre/centre2.jpg";
alte = "Centre2";
}
if (numimage > 30)
{
gotosite = "";
url = "images/centre/centre3.jpg";
alte = "Centre3";
}
if(gotosite != "")
	{
	document.write ('<A HREF="' + gotosite + '">');	
	}
document.write('<IMG SRC="' + url + '" ALT="' + alte + '" BORDER=0>')
if(gotosite != "")
	{
	document.write('</A>')
	}
}