function infosite() {
  var target = document.getElementById("abs0");
  target.innerHTML = '<div id="abs1"> </div>';
  var target = document.getElementById("abs1");
  _infosite  = '';
  _infosite += '<table style="border-collapse:collapse;font-family:arial;font-size:10pt;background-color:blue;color:white;font-weight:bold;" border="1" width="350"><tr>';
  _infosite += '<td align="left" width="350">Infos Site<div id="titre"></td>';
  _infosite += '<td align="right" onclick="close_popup1();" style="color:white;text-decoration:none;cursor:default;" title="Fermer cette fenêtre">X</td></tr></table>';
  _infosite += '<table style="border-collapse:collapse;font-family:arial;font-size:10pt;" cellpadding="10" cellspacing="5" border="1" width="350" height="160"><tr><td>';
  //_infosite += "<p align='center'>Dernière mise à jour: août 2009</p>";
  _infosite += "<p align='center'>Site optimisé pour Internet Explorer 7-8,<br />";
  _infosite += "Firefox 3.0, Safari 4.0, Google Chrome, Opera 10.0</p>";
  _infosite += "<p align='center'>Copyright &copy; 2010, Frédéric Fabre</p>";
  _infosite += "<p align='center'><input type='button' onclick='close_popup1();' value = 'Fermer'></p>";
  _infosite += "</td></tr></table>";
  target.innerHTML = _infosite;
}

function mess_alert(message) {
  var target = document.getElementById("abs0");
  target.innerHTML = '<div id="abs2"> </div>';
  var target = document.getElementById("abs2");
  _contenu  = '<table style="border-collapse:collapse;font-family:arial;font-size:10pt;background-color:blue;color:white;" border="1"><tr>';
  _contenu += '<td align="left" width="280"><b>Message</b></td>';
  _contenu += '<td align="right"><a href="#" onclick="close_popup2();" style="color:white;text-decoration:none;cursor:default;" title="Fermer cette fenêtre"><b>X</b></a></td></tr></table>';
  _contenu += '<table style="border-collapse:collapse;font-family:arial;font-size:10pt;" cellpadding="10" cellspacing="5" border="1" width="280" height="140"><tr><td>';
  _contenu += "<p align='center'><b>" + message + "</b></p><br />";
  _contenu += "<p align='center'><input type='button' onclick='close_popup2();' value = 'Fermer'></p>";
  _contenu += "</td></tr></table>";
  target.innerHTML = _contenu
}
function close_popup2() {
  document.getElementById("abs2").style.visibility = "hidden";
}

function close_popup1() {
  document.getElementById("abs1").style.visibility = "hidden";
}

function login(name,pass) {
  var target = document.getElementById("abs0");
  target.innerHTML = '<div id="abs4"> </div>';
  var target = document.getElementById("abs4");
  
  _contenu = "";
  _contenu  = '<table style="border-collapse:collapse;font-family:arial;font-size:10pt;background-color:blue;color:white;" border="1"><tr>';
  _contenu += '<td align="left" width="360"><b>Identification</b></td>';
  _contenu += '<td align="right" onclick="close_login();" style="color:white;text-decoration:none;cursor:default;" title="Fermer cette fenêtre"><b>X</b></td></tr></table>';
  _contenu += '<table style="border-collapse:collapse;font-family:arial;font-size:10pt;" cellpadding="10" cellspacing="5" border="1" width="340" height="180"><tr><td>';
  _contenu += "<form method=\"post\" action=\"pres_admin.php\" name='form_login'>";
  _contenu += "<table style=\"font-family:arial,sans-serif;font-size:10pt;\"><tr><td>Nom : </td>";
  _contenu += "<td><input type='text' name='name' value=" + name + "></td></tr>";
  _contenu += "<tr><td>Mot de passe : </td>";
  _contenu += "<td><input type='password' name='pass' value=" + pass + "></td></tr>";
  _contenu += "<tr><td colspan='2'><label>Mémoriser mes identifiants : <input type=\"checkbox\" name=\"mem_admin\" value=\"ok\" /></label></td></tr>";
  _contenu += "</table><p align=\"center\">";
  _contenu += "<input type=\"submit\" value=\"    OK    \">&nbsp;&nbsp;&nbsp;&nbsp;";
  _contenu += "<input type=\"button\" value=\"Annuler\" onclick='close_login();'>";
  _contenu += "</p>";
  _contenu += "</form>";
  _contenu += "</td></tr></table>";
  target.innerHTML = _contenu;
  document.form_login.name.focus();
}

function close_login() {
  document.getElementById("abs4").style.visibility = "hidden";
}

function OuvrirPopup(page,nom,option) {
  window.open(page,nom,option);
}
function valid_form() {
   var valid = true;
   _email = document.fields.email.value;
   exp = new RegExp("^[a-z0-9.-_]+@[a-z]{2,}[.][a-z]{2,4}$","i");
   
  if (document.fields.societe.value == "") {
    alert ('Veuillez renseigner le champ: Société');
    document.fields.societe.focus();
    return false;
  }
  if (document.fields.codepost.value == "") {
    alert ('Veuillez renseigner le champ: Code postal');
    document.fields.codepost.focus();
    return false;
  }
  codepost = document.fields.codepost.value;
  if ((isNaN(codepost)) || (codepost.length < 4)) {
    alert ('Le code postal est erronné');
    document.fields.codepost.focus();
    return false;
  }
  if (document.fields.nom.value == "") {
    alert ('Veuillez renseigner le champ: Nom');
    document.fields.nom.focus();
    valid = false;
    return false;
  }
  if (document.fields.fonction.value == "") {
    alert ('Veuillez renseigner le champ: Fonction');
    document.fields.fonction.focus();
    return false;
  }
  if (document.fields.email.value == "") {
    alert ('Veuillez renseigner le champ: E-mail');
    document.fields.email.focus();
    valid = false;
    return false;
  }
  if (!exp.test(_email)) {
    alert ('Adresse E-mail invalide');
    document.fields.email.focus();
    valid = false;
    return false;
  }
  if (valid) {
    document.fields.submit();
  }  
}