window.onload = function() {
			
			 var scroller = new SmoothScroll({duration: 700, wait: false, transition: Fx.Transitions.sineInOut}); 
			 $('m_presentation').addEvent('click', function(){ scroller.toElement('presentation'); }); 
			 $('m_portfolio').addEvent('click', function(){ scroller.toElement('portfolio'); });
			 $('m_formation').addEvent('click', function(){ scroller.toElement('formation'); }); 
			 $('m_exp').addEvent('click', function(){ scroller.toElement('exp'); });
			 $('m_contact').addEvent('click', function(){ scroller.toElement('contact'); }); 
			 
			 $('m_presentation2').addEvent('click', function(){ scroller.toElement('presentation'); }); 
			 $('m_portfolio2').addEvent('click', function(){ scroller.toElement('portfolio'); });
			 $('m_formation2').addEvent('click', function(){ scroller.toElement('formation'); }); 
			 $('m_exp2').addEvent('click', function(){ scroller.toElement('exp'); });
			 $('m_contact2').addEvent('click', function(){ scroller.toElement('contact'); }); 
			 
			 $$('.topN').addEvent('click', function(){ scroller.toElement('header'); }); 
			 $$('.top').addEvent('click', function(){ scroller.toElement('header'); }); 
			 
			var m_presentation_on =  $('m_presentation_on');
			var m_formation_on =  $('m_formation_on');
			var m_exp_on =  $('m_exp_on');
			var m_portfolio_on =  $('m_portfolio_on');
			var m_contact_on =  $('m_contact_on');
			 
			 m_formation_on.setStyle('display', 'block');
			 m_presentation_on.setStyle('display', 'block');
			 m_exp_on.setStyle('display', 'block');
			 m_portfolio_on.setStyle('display', 'block');
			 m_contact_on.setStyle('display', 'block');
			 
			var fadeFxPre = new Fx.Style(m_presentation_on, 'opacity', {duration: 500,wait: false}).set(0);
			 $('m_presentation').addEvents({'mouseover': function(){fadeFxPre.start(1);},'mouseout': function(){fadeFxPre.start(0);}});
			 
			 var fadeFxFor = new Fx.Style(m_formation_on, 'opacity', {duration: 500,wait: false}).set(0);
			 $('m_formation').addEvents({'mouseover': function(){fadeFxFor.start(1);},'mouseout': function(){fadeFxFor.start(0);}});
			  var fadeFxExp = new Fx.Style(m_exp_on, 'opacity', {duration: 500,wait: false}).set(0);
			 $('m_exp').addEvents({'mouseover': function(){fadeFxExp.start(1);},'mouseout': function(){fadeFxExp.start(0);}});
			  var fadeFxPor = new Fx.Style(m_portfolio_on, 'opacity', {duration: 500,wait: false}).set(0);
			 $('m_portfolio').addEvents({'mouseover': function(){fadeFxPor.start(1);},'mouseout': function(){fadeFxPor.start(0);}});
			  var fadeFxCon = new Fx.Style(m_contact_on, 'opacity', {duration: 500,wait: false}).set(0);
			 $('m_contact').addEvents({'mouseover': function(){fadeFxCon.start(1);},'mouseout': function(){fadeFxCon.start(0);}});
			 
			 
			 $('form').addEvent('submit', function(e) {
				e = new Event(e).stop();
			 
				var option = {'nom':$('nom').value,'email':$('email').value,'sujet':$('sujet').value,'message':$('message').value};
				var url= "mail.php";
				
				new Ajax(url, {
					method: 'post',
					update: $('reponse'),				
					onRequest: function(){
						$('reponse').setHTML('Patientez...');	
						//alert(option['nom']+option['email'] +option['sujet'] +option['message'] );
					}
				}).request(option);
			});
			 
		 }