//pictures preloading
var change = new Array();
var dir="images/";
change[0] = new Image();change[0].src = dir+"accueil_off.gif";
change[1] = new Image();change[1].src = dir+"accueil_on.gif";
change[2] = new Image();change[2].src = dir+"formulaire_off.gif";
change[3] = new Image();change[3].src = dir+"formulaire_on.gif";
change[4] = new Image();change[4].src = dir+"bureau_off.gif";
change[5] = new Image();change[5].src = dir+"bureau_on.gif";
change[6] = new Image();change[6].src = dir+"offre_off.gif";
change[7] = new Image();change[7].src = dir+"offre_on.gif";
change[8] = new Image();change[8].src = dir+"photographe_off.gif";
change[9] = new Image();change[9].src = dir+"photographe_on.gif";
change[10] = new Image();change[10].src = dir+"musique_off.gif";
change[11] = new Image();change[11].src = dir+"musique_on.gif";
change[12] = new Image();change[12].src = dir+"decoration_off.gif";
change[13] = new Image();change[13].src = dir+"decoration_on.gif";
change[14] = new Image();change[14].src = dir+"magicien_off.gif";
change[15] = new Image();change[15].src = dir+"magicien_on.gif";
change[16] = new Image();change[16].src = dir+"major_off.gif";
change[17] = new Image();change[17].src = dir+"major_on.gif";
change[18] = new Image();change[18].src = dir+"conseil_off.gif";
change[19] = new Image();change[19].src = dir+"conseil_on.gif";
//function for rollover (with layer or not)
function roll(lelayer,nouvelle,image) {
if (ns && browserVer <6 && lelayer !== null){
document.layers[lelayer].document[image].src = change[nouvelle].src
}else if (ie || lelayer== null)
document[image].src = change[nouvelle].src;
}