function validate_message(form) { 

	var message = form.message.value;
 	var messageRegex = new RegExp(/<\/?\w+((\s+\w+(\s*=\s*(?:".*?"|'.*?'|[^'">\s]+))?)+\s*|\s*)\/?>/gim);
  

  if(message == "") {
    inlineMsg('message','Le champ question est vide.');
    return false;
  }
  if(message.match(messageRegex)) {
    inlineMsg('message','Votre question est invalide.');
    return false;
  }
  return true;
}

// form validation function //********************************

function validate(form) { 

	var message="",compteur=0,ok=0;
	var nb_elemnt= document.form.elements.length; //le nombre des éléments de form
	var elmtRegex = /^[a-zA-Z]+(([\'\,\.\- ][a-zA-Z ])?[a-zA-Z]*)*$/;
	var emailRegex = /^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$/;
  	var messageRegex = new RegExp(/<\/?\w+((\s+\w+(\s*=\s*(?:".*?"|'.*?'|[^'">\s]+))?)+\s*|\s*)\/?>/gim);


	for(i=0;i<nb_elemnt;i++)
		 {//alert(nb_elemnt+"**"+document.form.elements[i].type);
		

		  if( document.form.elements[i].type!="button" && document.form.elements[i].type!="radio" && document.form.elements[i].type!="hidden" )	
		  {   
				  
			var name_elemnt=document.form.elements[i].name ; 
			var valeur_element=document.getElementById(name_elemnt).value; //alert(name_elemnt+"****"+valeur_element);
			
		  if(valeur_element == "") {
			inlineMsg(name_elemnt,'El campo '+name_elemnt+' está vacío.',2); 
			return false;
		  }


		if(name_elemnt=="movil")
			{  	if(valeur_element.length < 6) {
				inlineMsg(name_elemnt,'Su '+name_elemnt+' no es válida.',2);
				return false;	  }
			}   
			else if(name_elemnt=="email")
				{  if(!valeur_element.match(emailRegex)) {
					inlineMsg(name_elemnt,'<strong>Erreur</strong><br />Su '+name_elemnt+' no es válida.',2);
					return false;				}
				}
				else if(name_elemnt=="fecha_nacimiento")
					{
						var mydate= new Date()
						var annee=mydate.getFullYear()-18;
						var mois=mydate.getMonth()+1
						var jour=mydate.getDate()
			
						var jour_naiss = valeur_element.substring(0,2);
						var mois_naiss = valeur_element.substring(3,5);
						var annee_naiss = valeur_element.substring(6,10);
						
						if(annee_naiss > annee)
						{inlineMsg(name_elemnt,'<strong>Erreur</strong><br />Su edad es de <18 años.',2);
						return false;}
					  if (annee_naiss == annee && mois_naiss > mois)
						{inlineMsg(name_elemnt,'<strong>Erreur</strong><br />Su edad es de <18 años.',2);
						return false;}
					  if(annee_naiss == annee && mois_naiss == mois && jour_naiss > jour)	
						{inlineMsg(name_elemnt,'<strong>Erreur</strong><br />Su edad es de <18 años.',2);
						return false;}

					}
					else if(name_elemnt=="pregunta")
						{   if(valeur_element.match(messageRegex)) { 
							inlineMsg(name_elemnt,'Su '+name_elemnt+' no es válida.',2);
							return false;
					 												 }
						}
						else if(name_elemnt=="pais")
							{   if(valeur_element == "") { 
								inlineMsg(name_elemnt,'Su '+name_elemnt+' no es válida.',2);
								return false;
																		 }
							}
							else if(!valeur_element.match(elmtRegex) &&  name_elemnt != "sexo") { 
								inlineMsg(name_elemnt,'Su '+name_elemnt+' no es válida.',2);
								return false;
	
																	 }								 
		 }///fin condition
	}//fin boucle

  return true;
}
//***************************************

// START OF MESSAGE SCRIPT //

var MSGTIMER = 20;
var MSGSPEED = 5;
var MSGOFFSET = 3;
var MSGHIDE = 3;

// build out the divs, set attributes and call the fade function //
function inlineMsg(target,string,autohide) {
  var msg;
  var msgcontent; 
  if(!document.getElementById('msg')) {
    msg = document.createElement('div');
    msg.id = 'msg';
    msgcontent = document.createElement('div');
    msgcontent.id = 'msgcontent';
    document.body.appendChild(msg);
    msg.appendChild(msgcontent);
    msg.style.filter = 'alpha(opacity=0)';
    msg.style.opacity = 0;
    msg.alpha = 0;
  } else {
    msg = document.getElementById('msg');
    msgcontent = document.getElementById('msgcontent');
  }
  msgcontent.innerHTML = string;
  msg.style.display = 'block';
  var msgheight = msg.offsetHeight;
  var targetdiv = document.getElementById(target);
  //targetdiv.select();
  targetdiv.focus();
  var targetheight = targetdiv.offsetHeight;
  var targetwidth = targetdiv.offsetWidth;
  var topposition = topPosition_msg(targetdiv) - ((msgheight - targetheight) / 2);
  var leftposition = leftPosition_msg(targetdiv) + targetwidth + MSGOFFSET;
  
 //alert(topPosition(targetdiv)+"aaaaa"+msgheight+"aaaaa"+targetheight);
 
  msg.style.top = topposition + 'px';
  msg.style.left = leftposition + 'px';
  clearInterval(msg.timer);
  msg.timer = setInterval("fadeMsg(1)", MSGTIMER);
  if(!autohide) {
    autohide = MSGHIDE;  
  }
  window.setTimeout("hideMsg()", (autohide * 1000));
}

// hide the form alert //
function hideMsg(msg) {
  var msg = document.getElementById('msg');
  if(!msg.timer) {
    msg.timer = setInterval("fadeMsg(0)", MSGTIMER);
  }
}

// face the message box //
function fadeMsg(flag) {
  if(flag == null) {
    flag = 1;
  }
  var msg = document.getElementById('msg');
  var value;
  if(flag == 1) {
    value = msg.alpha + MSGSPEED;
  } else {
    value = msg.alpha - MSGSPEED;
  }
  msg.alpha = value;
  msg.style.opacity = (value / 100);
  msg.style.filter = 'alpha(opacity=' + value + ')';
  if(value >= 99) {
    clearInterval(msg.timer);
    msg.timer = null;
  } else if(value <= 1) {
    msg.style.display = "none";
    clearInterval(msg.timer);
  }
}

// calculate the position of the element in relation to the left of the browser //
function leftPosition_msg(target) {
  var left = 0;
  if(target.offsetParent) {
    while(1) {
      left += target.offsetLeft;
      if(!target.offsetParent) {
        break;
      }
      target = target.offsetParent;
    }
  } else if(target.x) {
    left += target.x;
  }
  return left;
}

// calculate the position of the element in relation to the top of the browser window //
function topPosition_msg(target) {
  var top = 0;
  if(target.offsetParent) {
    while(1) {
      top += target.offsetTop;
      if(!target.offsetParent) {
        break;
      }
      target = target.offsetParent;
    }
  } else if(target.y) {
    top += target.y;
  }
  return top;
}

// preload the arrow //
if(document.images) {
  arrow = new Image(7,80); 
  arrow.src = "images/msg_arrow.gif"; 
}