/*********************************
 * HOVER IMAGE FUNCTION
 * param: object (image)
 * the source must add "_hover" at the end of his name
 * example for "image.png": "image_hover.png"
 *********************************/
/* hover image */
function enableHover(object) {
    var adr = $(object).attr('src').lastIndexOf("\\");
    fic = $(object).attr('src').substring(adr+1).split(".png");
    $(object).attr('src',  fic[0].split('_hover')[0]+"_hover."+"png");
}
/* diseable hover */
function disableHover(object) {
    var adr = $(object).attr('src').lastIndexOf("\\"),
    fic = $(object).attr('src').substring(adr+1).split("_hover");
    $(object).attr('src',  fic[0]+'.png');
}