var imagenumber1 = 3; 
var randomnumber1 = Math.random(); 
var rand1 = Math.round( (imagenumber1-1) * randomnumber1); 

images1 = new Array; 
images1[0] = "verde1/1.gif"; 
images1[1] = "verde1/2.gif"; 
images1[2] = "verde1/3.gif"; 

links1 = new Array; 
links1[0] = "publica.html"; 
links1[1] = "publica.html"; 
links1[2] = "publica.html"; 

var image1 = images1[rand1]; 
var link1 = links1[rand1];