function popRotate()
{ 
	num=ar_text.length;
	incr=Math.floor(Math.random()*num);
	document.open;
	document.write ("<img src='" + ar_image[incr] + "' alt='Student Testimonial' width='250' height='150' style='background-color: #999999' /><h2>What the students are saying </h2><p>" + ar_text[incr] + " </p>");
	document.close();
}