var testimonials = new Array() 

testimonials[0] = ''
testimonials[1] = ''
testimonials[2] = ''

var j = 0
var p = testimonials.length;
var preBuffer = new Array()
for (i = 0; i < p; i++){
   preBuffer[i] = new Image()
   preBuffer[i].src = testimonials[i]
}
var whichTestimonials = Math.round(Math.random()*(p-1));
document.write(testimonials[whichTestimonials]);