var imagenumber3 = 3; 
var randomnumber3 = Math.random(); 
var rand3 = Math.round( (imagenumber3-1) * randomnumber3); 

images3 = new Array; 
images3[0] = "verde3/1.gif"; 
images3[1] = "verde3/2.gif"; 
images3[2] = "verde3/3.gif"; 

links3 = new Array; 
links3[0] = "publica.html"; 
links3[1] = "publica.html"; 
links3[2] = "publica.html"; 

var image3 = images3[rand3]; 
var link3 = links3[rand3];