var nlinks = 1; // numero di links voluti (scelti)

var links = new Array()
links[0]="http://www.youchat.it";
links[1]="http://www.silaonline.it";
links[2]="http://www.youchat.it";
links[3]="http://www.silaonline.it";
links[4]="http://www.portaleauto.it";

var imgs = new Array()
imgs[0]="random/banner486a.jpg";
imgs[1]="random/b4_sila.jpg";
imgs[2]="random/banner486a.jpg";
imgs[3]="random/b4_sila.jpg";
imgs[4]="random/Autoonline.jpg";

var selinks = new Array()

for (i = 0 ; i < nlinks ; i++)
	{
	scelto = Math.round((links.length-1)*Math.random());
	flagscelto=false;
	for (k=0;k<i;k++)
		selinks[k]==scelto?flagscelto=true:null;
	flagscelto?i--:selinks[i]=scelto;
	}

function mostra()
{
for (i = 0 ; i < nlinks ; i++)
	document.write("<A HREF="+links[selinks[i]]+" target='_blank'><IMG SRC='"+imgs[selinks[i]]+"'></A><BR>");

}