function montrer(objet){
		if (document.getElementById(objet))
		{
			if (document.getElementById(objet)!=null) document.getElementById(objet).style.display = 'block'; 
		}
		else if (document.all){
			document.getElementById(objet).display = 'block';
		}
	}	
	function cacher(objet){
		if (document.getElementById(objet))
		{
			if (document.getElementById(objet) != null) document.getElementById(objet).style.display = 'none';
		}
		else if (document.all) 
		{
			document.getElementById(objet).display = 'none';
		}
	}

	function effacer()
	
	{
	
	  document.getElementById('message').value = '';
	
	}
	
	function mouseMove (evt) {
		var x = 0;
		var y = 0;
		var plusX = 0;
		var plusY = 0;
		if (document.layers) {
			x = evt.x;
			y = evt.y;
			plusX = window.pageXOffset;
			plusY = window.pageYOffset;
		} else	if (document.all) {
			x = event.clientX;
			y = event.clientY;
			plusX = document.body.scrollLeft;
			plusY = document.body.scrollTop;
		} else if (document.getElementById) {
			x = evt.clientX;
			y = evt.clientY;
			plusX = window.pageXOffset;
			plusY = window.pageYOffset;
		}
		document.getElementById("popBox").style.left = (x+plusX+15)+"px";
		document.getElementById("popBox").style.top = (y+plusY+5)+"px";
	} 
	
	if (document.layers)
		document.captureEvents(Event.MOUSEMOVE); 
	if (document.layers || document.all) 
		document.onmousemove = mouseMove; 
	if (document.addEventListener) 
		document.addEventListener('mousemove', mouseMove, true);
	
	function montre_bulle(text) {
	 var elt = document.getElementById('popBox');
	 elt.style.display = "block";
	 elt.style.visibility = "visible";
	 elt.innerHTML = text;
	}
	
	function cache_bulle() {
	 var elt = document.getElementById('popBox');
	 elt.style.display = "none";
	 elt.style.visibility = "hidden";
	}