// JavaScript Document

// Verif formulaire

    function concoursMark_form() {
        var error = false;
        var message = verif_form_operation_header;
        if(document.concoursMarque.nom.value.length == 0) {
            error = true;
            message = message + verif_form_operation_nom;
        }
        if(document.concoursMarque.prenom.value.length == 0) {
            error = true;
            message = message + verif_form_operation_prenom;
        }
        if(document.concoursMarque.email.value.length == 0) {
            error = true;
            message = message + verif_form_operation_email;
        }
        //alert(document.getElementById('jour').options.selectedIndex);
       /*if(!document.getElementById('jour').options.selectedIndex 
          || !document.getElementById('mois').options.selectedIndex 
          || !document.getElementById('annee').options.selectedIndex) {
            error = true;
            message = message + '* Votre date de naissance \n';
        }*/
        //alert(document.getElementById('homme').checked);
       if(document.getElementById('homme').checked==false && document.getElementById('femme').checked==false) {
            error = true;
            message = message + verif_form_operation_genre;
        }
        if(document.concoursMarque.email.value.length > '0') {
          var a = document.concoursMarque.email.value;
          test = true;
          for (var j=1 ; j<(a.length) ; j++) {
            if (a.charAt(j)=='@') {
               if (j<(a.length-4)){
                  for (var k=j ; k<(a.length-2) ; k++) {
                     if (a.charAt(k)=='.') {
                        test = false;
                     }
                  }
               }
            }
          }
          if(test == true){   
            error = true;
            message = message + verif_formFlou_email_format;
      }
    }
        if (error == true){
            window.alert(message);
            return false;
        } else {
            return true;
        }	
     } 

function message(){
	document.getElementById('target').innerHTML = "<img src='ecran1.jpg' />";
	}
function show(n){
    document.getElementById(n).style.display = "block";
}
function hide(n){
    document.getElementById(n).style.display = "none";
}