function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);


// Boucle de validation
function validateForm(form) {
	if (isNotEmpty(form.nom)) {
		if (isNotEmpty(form.prenom)) {
			if (isNotEmpty(form.email)) {
				return true;
			}
		}
	}
	return false;
}

function isNotEmpty(elem) {
	var str = elem.value;
    var re = /.+/;
    if(!str.match(re)) {
        alert("Veuillez renseigner les champs obligatoires.");
        setTimeout("focusElement('" + elem.form.name + "', '" + elem.name + "')", 0);
        return false;
    } else {
        return true;
    }
}

function focusElement(formName, elemName) {
    var elem = document.forms[formName].elements[elemName];
    elem.focus();
    elem.select();
}

function visibilite(thingId){
	var targetElement;
	targetElement = document.getElementById(thingId) ;
	if (targetElement.style.display == "none" )	{
		targetElement.style.display = "" ;
	} 
	else {
		targetElement.style.display = "none" ;
	}
}