function majDiaporama(counter, eff, dur, inter) 
{

	var counter = 6;
	var eff = 'appear';
	var dur = 3;
	var inter = 6;

	Effect.toggle('rotate' + counter, eff, { duration: 0 })

	var count = counter - 1;
	var tohide = counter;


  setInterval(function() 
  {
 
 	Effect.toggle('rotate' + tohide, eff, { duration: dur });
   	Effect.toggle('rotate' + count, eff, { duration: dur });
 	
	tohide = count;
	
	count = (count == 1)? counter : count - 1
	
	
  },inter * 1000);
  
}