//image rotation created on March 29, 2006 
function background_Rotate()
{ 
 number = ar_background.length; 
 increment = Math.floor(Math.random() * number); 
 document.open();
 document.write("<div id=\"mastband\" style=\"background-image: url(/profsales/files/structure/" + ar_background[increment] + "); \">");
document.close();
}