function affiche(action,contenu){
			var voir;
			var display;
			if (action == "cache"){
				voir = "hidden";
				display = "none";
			}
			else {
				voir = "visible";
				display = "block";
			}	
			document.getElementById("bulle").innerHTML = contenu;
			function init() {
				document.onmousemove=mousemove;
			}
			function mousemove(e) {
				if (navigator.appName.indexOf("Explorer") > -1) {
					var mouseX=event.x; var mouseY=event.y;
				}
				else {var mouseX=e.pageX; var mouseY=e.pageY;}

			document.getElementById("bulle").style.top = mouseY-90+"px";
			document.getElementById("bulle").style.left = mouseX+15+"px";
			document.getElementById("bulle").style.visibility = voir;
			document.getElementById("bulle").style.display = display; 
			}
			init();
			function cache(){
				document.getElementById("bulle").style.visibility = "hidden";
			}
}