//Fonction getElementById(id)
function element(id){
	return document.getElementById(id);
}

function precharge_images(){
	preload_image_object = new Image();
	image_url = new Array();
	image_url[0] = "img/diapo/rencontre-lille.jpg";
	image_url[1] = "img/diapo/rencontre-valencienne.jpg";
	image_url[2] = "img/diapo/rencontre-dunkerque.jpg";
	image_url[3] = "img/diapo/rencontre-nord.jpg";
	image_url[4] = "img/diapo/rencontre-59.jpg";
	image_url[5] = "img/diapo/rencontre-unicentre.jpg";
	var i = 0;
	for(i=0; i<=5; i++){ 
		preload_image_object.src = image_url[i];
	} 
}