var img = new Image();
img.src="Images/Accueil.png";
var img2 = new Image();
img2.src="Images/Compilations.png";
var img3 = new Image();
img3.src="Images/Participer.png";

function clignAccueil(event) { 
	$("Accueil").style.backgroundImage="url('Images/Accueil.png')";
	setTimeout(function(){ $("Accueil").style.backgroundImage="url('Images/hAccueil.gif')" ;},3);
    event.returnValue = false; 
} 
function clignCompilations(event) { 
	$("Compilations").style.backgroundImage="url('Images/Compilations.png')";
	setTimeout(function(){ $("Compilations").style.backgroundImage="url('Images/hCompilations.gif')" ;},3);
    event.returnValue = false; 
} 
function clignParticiper(event) { 
	$("Participer").style.backgroundImage="url('Images/Participer.png')";
	setTimeout(function(){ $("Participer").style.backgroundImage="url('Images/hParticiper.gif')" ;},3);
    event.returnValue = false; 
} 

Event.observe(window, 'load', function() {
	$('Accueil').observe('mouseover', clignAccueil);
	$('Compilations').observe('mouseover', clignCompilations);
	$('Participer').observe('mouseover', clignParticiper);
	});