image = new makeArray(3);
image[1]="img/visuel_accueil.jpg";
image[2]="img/visuel_accueil1.jpg";
image[3]="img/visuel_accueil2.jpg";
image[4]="img/visuel_accueil3.jpg";


function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}


function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}


function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}


function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


function mark(face,field_color,text_color){
	if (document.documentElement){//if browser is IE5+ or NS6+
		face.style.backgroundColor=field_color;
		face.style.color=text_color;
	}
}


function openWin(theURL,winName,features) {
	var newwindow = window.open(theURL,winName,features);
	if (window.focus) { newwindow.focus(); }
}


function toggleVisibility(divName) {
	var div = document.getElementById(divName);
	if (div.style.display == "none") {
		div.style.display = "block";
	} else {
		div.style.display = "none";
	}
}


function setVisibility(divName, visibility){
	document.getElementById(divName).style.display = visibility;
}


/* set the first target to visible and the subsequent targets to not visibile*/
function toggleVisibilityUnique(targets){
	for ( var x = 0; x < targets.length ; x++ )	{
		var div = document.getElementById(targets[x]);
		if (x == 0) div.style.display = "block";
		else div.style.display = "none";
	}
}


function calculate(obj, limit, write_to_name){
	//if space is not counted then uncomment below
	//nu=obj.value.replace(/\s/g,'').length;
	nu = obj.value.length;
	difference = limit - nu;
	if (difference < 0) difference = 0;
	document.getElementById(write_to_name).innerHTML= "You have "+ (difference) +" characters left";
}




function goBack() {
	window.history.go(-1);	
}


function $(id) {
	return document.getElementById(id);	
}


function redirect(url, replaceUrl) {
	if (replaceUrl == undefined) replaceUrl = false;
	if (replaceUrl) {
		location.replace(url);
	} else {
		location.href = url;
	}
}


function ChangeUrl()
	{
	if (document.FormDir.ListeUrl.selectedIndex != 0)
		{
		location.href = document.FormDir.ListeUrl.options[document.FormDir.ListeUrl.selectedIndex].value;
	 	}
	else
		{
		alert('Select your topic');
		}
	}
function pop (Url,Name_Frame,Components) {
     window.open (Url,Name_Frame, Components);
}
function ChangeUrl() {
     if (document.FormMenu.ListeUrl.selectedIndex != 0) {
          if (document.FormMenu.ListeUrl.options[document.FormMenu.ListeUrl.selectedIndex].value != "") {
               window.top.location.href = document.FormMenu.ListeUrl.options[document.FormMenu.ListeUrl.selectedIndex].value;
          } else {
               alert('Faites un choix');
          }
     } else {
          alert('Faites un choix');
     }
}

function makeArray(n) {
this.length = n;
for (var i=1; i<=n; i++) {
this[i] = ""; 
}
return this;
}

function imagealeatoire() {
var i = Math.floor(4 * Math.random() + 1);
return image[i];
}

function popcal(form, chp)
{
file='calender.php?formopener='+form+'&champ='+chp;
var calendrier=window.open(file, "calendrier", "location=0, menubar=0, resizable=0, status=0, scrollbars=0, width=180, height=70");

}