// met en place le roll over sur les icones
function rolloverIcon(id) {
	image = document.getElementById(id);
	image.status = true;
	image.src1 = image.src;
	var lengthImageName = image.src.length;
	var imageName = image.src.substring(0, lengthImageName - 4);
	var imageExt = image.src.substring(lengthImageName - 3, lengthImageName);
	image.src = imageName + "_ro." + imageExt;
	//alert(image.src);
	
	image.onmouseout = function() {
		image.src = image.src1;
	}
}