var newwindow;

	function newpage(url)
	{
		var newImg = new Image();
		newImg.src = url;
		var height = newImg.height;
		var width = newImg.width;
		newwindow=window.open(url,'name','width=' + width + ', height=' + height + ',resizable=no,scrollbars=yes,toolbar=no,menubar=no,status=no,directories=no');
		if (window.focus) {newwindow.focus();}
	}

	function afficher(element)
	{
		element = document.getElementById(element);
		element.style.visibility="visible";
	}

	function cacher(element)
	{
		element = document.getElementById(element);
		element.style.visibility="hidden";
	}
				   
	function toggle(element) {
		element = document.getElementById(element);
		
        if(element.style.display=="none") {
				element.style.display="block";	    
		}
        else {
				element.style.display="none";	
		}
        return true;
}