var image_count;
 	var image_interval;
 	var old_image = 0;
 	var current_image = 0;
 
 	$(document).ready(function(){
	   			
  			image_count = $("div.billboard").size();
				$("div.billboard:eq("+current_image+")").css('visibility','visible');
  			$("div.billboard").click(function() {				
//  							image_interval = setInterval(image_rotate,1000); //time in milliseconds
								image_rotate(); //time in milliseconds
								
   			});
				
	 });
 
 	function image_rotate() {
        
				current_image = (old_image + 1) % image_count; 
      	     	 
      	$("div.billboard:eq(" + old_image + ")").fadeOut(600);
      	$("div.billboard:eq(" + current_image + ")").fadeIn(700); 
        $("div.billboard:eq(" + current_image + ")").css('visibility','visible'); 
          
        old_image = current_image;
}