var s1effect = new Fx.Slide('s1div', { wait: false });
var s2effect = new Fx.Slide('s2div', { wait: false });
var s3effect = new Fx.Slide('s3div', { wait: false }); 
var s4effect = new Fx.Slide('s4div', { wait: false }); 


 
  $('s1').addEvent('click', function(){
    s1effect.toggle('vertical');
  });
  
  $('s2').addEvent('click', function(){
    s2effect.toggle('vertical');
  }); 
   
  $('s3').addEvent('click', function(){
    s3effect.toggle('vertical');
  });
  
  $('s4').addEvent('click', function(){
    s4effect.toggle('vertical');
  });
  
  s1effect.hide();
  s2effect.hide();
  s3effect.hide();
  s4effect.hide();
  
  setTimeout("s1effect.toggle('vertical')",1500);
  setTimeout("s2effect.toggle('vertical')",2500);
  setTimeout("s3effect.toggle('vertical')",3500);
  setTimeout("s4effect.toggle('vertical')",4500);