window.addEvent('domready', function() {  
     $$('.opacity').each(function(el) {  
         /* set the opacity based on the alt value */  
         el.set('opacity','.' + 80 );  
     });  
 });  
 
 	 window.addEvent('domready', function() {  
     $$('.mainopacity').each(function(el) {  
         /* set the opacity based on the alt value */  
         el.set('opacity','.' + 80 );  
     });  
 });  

window.addEvent('domready', function() { 
	var tabs = new SimpleTabs('tab', {
		selector: 'h4'
	}); 
});