function changefond(elem){
			//ONMOUSEOVER
				document.getElementById(elem).style.borderColor  = "#FF9600";
			}
			function changefond2(elem){
			//ONMOUSEOUT
				document.getElementById(elem).style.borderColor  = "#008000";
			}
					function rolloverIn(elem){
				document.getElementById(elem).src="../images/films/bt_en_savoir_plus_on.png";
			}
			function rolloverOut(elem){
				document.getElementById(elem).src="../images/films/bt_en_savoir_plus_off.png";	
			}
			function changecouleurcontour1(elem){
			//ONMOUSEOVER
				document.getElementById(elem).style.borderColor = "#87CC01";
				document.body.style.cursor = "pointer";
			}
			function changecouleurcontour2(elem){
			//ONMOUSEOUT
				document.getElementById(elem).style.borderColor = "#c7c7c7";
				document.body.style.cursor = "default";
			}