var nbimage= 100;
var width;
var height;
var url;
var alte;
function banniere()
{
numimage= Math.round(Math.random()*(nbimage-1)+1);
if (numimage <= 30)
{
gotosite = "devis-travaux-deco";
url = "img-devis-travaux/1.gif";
alte = "Travaux deco dure dure";
}
if (numimage > 30 && numimage <= 60)
{
gotosite = "devis-travaux-deco";
url = "img-devis-travaux/2.gif";
alte = "Solution travaux deco";
}
if (numimage > 60 && numimage <= 100)
{
gotosite = "devis-travaux-deco";
url = "img-devis-travaux/3.gif";
alte = "Simplifiez vous les travaux";
}
if(gotosite != "")
	{
	document.write ('<A HREF="' + gotosite + '">');	
	}
document.write('<IMG SRC="' + url + '" ALT="' + alte + '" BORDER=0>')
if(gotosite != "")
	{
	document.write('</A>')
	}
}