function verifpet(form)
{
  if( formul.nom.value == "") 
  alert('Le champ NOM est vide !!!');
   if( formul.cd.value == "")
  alert('Le champ EMAIL est vide !!!');
  else
  {
	alert('Merci d''avoir signer la Pétition de Zouk Radio.');
  formul.submit();
  } }
  
function form(form)
{
  	alert('Merci d''avoir voter.');
  form.submit();
  }


function verifform(formul)
{
  if( formul.nom.value == "") 
  alert('Le champ NOM est vide !!!');
   if( formul.email.value == "")
  alert('Le champ EMAIL est vide !!!');
  else
  {
	alert('Votre message a été bien envoyé.');
  formul.submit();
  } }

// mettre un minimum de 4 images !!!

var coef = 0.05 ; // avancement de l'opacité
var temps = 50 ; // temps entre chaque changement d'opacité
var temps_pause = 2000 ; // temps d'attente entre 2 changements d'images
var nombre_image = 5 ; // nombre d'images a faire bouger
var prefix_image = 'gfx/'; // chemin + prefix du nom des images
var suffix_image = '.jpg' ; // suffix + '.extension' du nom des images


// pas touche
var indice = 2; // les 2 premiere image sont deja charger dans le HTML, on commence a la 3eme
var isIE = navigator.userAgent.toLowerCase().indexOf('msie')!=-1 ;
var img1 = null;
var img2 = null ;
var sens = 1;
var tabImg;  // tab contenant les images

function prechargerImg(){
  tabImg = new Array(nombre_image);
  for (i=0; i<=nombre_image -1; i++){
	tabImg[i]=new Image();
	tabImg[i].src = prefix_image+(i+1)+suffix_image;
  }
}

function init()
{
	img1 = document.getElementById("defilement1") ;
	img2 = document.getElementById("defilement2") ;

	prechargerImg();
	change_opacity();
}

function change_opacity()
{	
	var opacity1 = 0 ;
	var opacity2 = 0 ;
	if (isIE)  // for IE
	{	opacity1 = parseFloat(img1.filters.alpha.opacity);
		opacity2 = parseFloat(img2.filters.alpha.opacity);
	}
	else       // for mozilla
	{	opacity1 = parseFloat(img1.style.MozOpacity);
		opacity2 = parseFloat(img2.style.MozOpacity);
	}

	if (sens)
	{	if (isIE)  // for IE
		{	img1.filters.alpha.opacity = opacity1 + coef * 100;
			img2.filters.alpha.opacity = opacity2 - coef * 100;
		}
		else // for Mozilla
		{	img1.style.MozOpacity = opacity1 + coef;
			img2.style.MozOpacity = opacity2 - coef;
		}
	}
	else
	{
		if (isIE)  // for IE
		{	img1.filters.alpha.opacity = opacity1 - coef * 100;
			img2.filters.alpha.opacity = opacity2 + coef * 100;
		}
		else // for Mozilla
		{	img1.style.MozOpacity = opacity1 - coef;
			img2.style.MozOpacity = opacity2 + coef;
		}
	}

	if (isIE)  // for IE
	{	opacity1 = parseFloat(img1.filters.alpha.opacity);
		opacity2 = parseFloat(img2.filters.alpha.opacity);
	}
	else       // for mozilla
	{	opacity1 = parseFloat(img1.style.MozOpacity);
		opacity2 = parseFloat(img2.style.MozOpacity);
	}

	// on fait varié le sens d'opacité du bazar
	if (opacity2  <= 0)
	{	img2.src=tabImg[indice++].src;
		sens = 0;
		if (indice == (tabImg.length)) indice=0;
		window.setTimeout("change_opacity()",temps_pause) ; // attente
		return 0;
	}
	else if (opacity1 <= 0)
	{	img1.src=tabImg[indice++].src;
		sens = 1;
		if (indice == (tabImg.length)) indice=0;
		window.setTimeout("change_opacity()",temps_pause) ; // attente
		return 0;
	}
	//window.status = "opa1 : " + img1.style.MozOpacity + "  opa2 : " + img2.style.MozOpacity + "   indice : "+indice;
	window.setTimeout("change_opacity()",temps) ; // recursion toutes les 30 millisec
}
function verifform(formul)
{
  if( formul.nom.value == "") 
  alert('Le champ NOM est vide !!!');
   if( formul.email.value == "")
  alert('Le champ EMAIL est vide !!!');
  else
  {
	alert('Votre message a été bien envoyé.');
  formul.submit();
  } }

function veriForm(form)
{
   if( form.ville.value =="") 
   	   {
		  alert('Le champ VILLE est vide !!!');
  			thisForm.usager.focus();
 		 }
		  if( form.ville.value =="Indiquez la ville") 
   	   {
		  alert('Indiquez la ville !!!');
  			thisForm.usager.focus();
 		 }
  else
    {
		alert('Votre message a été bien envoyé.');
		form.submit();
  }
    }
	
function Form(formul)
{
  	alert('Merci d''avoir voter.');
  formulaire.submit();
  }
  


function NewWindow(url,hauteur,largeur) {
	var winl = (screen.width - largeur) / 2;
	var wint = (screen.height - hauteur) / 2;
	date_t = new Date;
	time = date_t.getTime();
	winprops = 'height='+hauteur+',width='+largeur+',top='+wint+',left='+winl+',scrollbars=0,resizable'
	win = window.open(url, time, winprops)
	}

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_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_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 MM_nbGroup(event, grpName) { //v3.0
  var i,img,nbArr,args=MM_nbGroup.arguments;
  if (event == "init" && args.length > 2) {
    if ((img = MM_findObj(args[2])) != null && !img.MM_init) {
      img.MM_init = true; img.MM_up = args[3]; img.MM_dn = img.src;
      if ((nbArr = document[grpName]) == null) nbArr = document[grpName] = new Array();
      nbArr[nbArr.length] = img;
      for (i=4; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
        if (!img.MM_up) img.MM_up = img.src;
        img.src = img.MM_dn = args[i+1];
        nbArr[nbArr.length] = img;
    } }
  } else if (event == "over") {
    document.MM_nbOver = nbArr = new Array();
    for (i=1; i < args.length-1; i+=3) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = (img.MM_dn && args[i+2]) ? args[i+2] : args[i+1];
      nbArr[nbArr.length] = img;
    }
  } else if (event == "out" ) {
    for (i=0; i < document.MM_nbOver.length; i++) {
      img = document.MM_nbOver[i]; img.src = (img.MM_dn) ? img.MM_dn : img.MM_up; }
  } else if (event == "down") {
    if ((nbArr = document[grpName]) != null)
      for (i=0; i < nbArr.length; i++) { img=nbArr[i]; img.src = img.MM_up; img.MM_dn = 0; }
    document[grpName] = nbArr = new Array();
    for (i=2; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = img.MM_dn = args[i+1];
      nbArr[nbArr.length] = img;
  } }
}