function writeImage(){

 var j=parseInt(Math.random()*3);
  j=(isNaN(j))?0:j;

  list = new Array();
  list[list.length]='/Portals/_default/skins/pioneerTech/images/sub_right_full1.jpg';
  list[list.length]='/Portals/_default/skins/pioneerTech/images/sub_right_full2.jpg';
  list[list.length]='/Portals/_default/skins/pioneerTech/images/sub_right_full3.jpg';
     
  document.write("<img src='"+list[j]+"' border='0' alt='Full Time Programs' />");
}