var wait = 500;var hideTimer;var view = 0;
function keepOpen() {
  if (hideTimer != null) clearTimeout(hideTimer);
}
function hide() {
    if (view == 1) {view = 0; hideTimer = setTimeout("hideAll()", wait);}
}
function montre(id) {
  view = 1;keepOpen();var d = document.getElementById(id);
	for (var i = 1; i<=30; i++) {
		if (document.getElementById('smenu'+i)) {document.getElementById('smenu'+i).style.display='none';}
	}
  if (d) {d.style.display='block';}
}
function change(id) {
  for (var i=1; i<19; i++ ) { 
    rub_x = 'menu' + i;
    if(rub_x != id) {document.getElementById(rub_x).src = "http://www.electromust.com/img/2_gauche/menuv2/" + rub_x + "_off.gif";}
    else {document.getElementById(rub_x).src = "http://www.electromust.com/img/2_gauche/menuv2/" + rub_x + "_on.gif";}
  }
}
function hideAll() {
    clearTimeout(hideTimer);var rub_x;var srub_x;var srub_x_x;
    for (var j=1; j<19; j++ ) {
        rub_x = 'menu' + j;srub_x = 'smenu' + j;
        document.getElementById(rub_x).src = "http://www.electromust.com/img/2_gauche/menuv2/" + rub_x + "_off.gif";
    		document.getElementById(srub_x).style.display = 'none'; // masque tous les layers sous-rubriques de niveau 1
    }
}