if(document.images){
	image1 = new Image();
	image1.src = '../images/contenu/site/videoOver.png';

	image2 = new Image();
	image2.src = '../images/contenu/site/economieOver.png';
	
	image3 = new Image();
	image3.src = '../images/contenu/site/simulateurOver.png';
	
	image4 = new Image();
	image4.src = '../images/contenu/site/professionnelsOver.png';
}