// JavaScript Document
function gererImages(){
	var a_menu=new Array("btprogramme","btprofession","btfinissants","btstages");
	for (cpt=0;cpt<a_menu.length;cpt++) {
		document.getElementById(a_menu[cpt]).onmouseover=mouseOverImage;
		document.getElementById(a_menu[cpt]).onmouseout=mouseOutImage;
		}
	};

function mouseOverImage(){
	this.src=this.src.substring(0,this.src.length-4)+"_hover.png";
	};

function mouseOutImage(){
	this.src=this.src.substring(0,this.src.length-10)+".png";
	};

window.onload=gererImages;