var http_request = false;
   
   function makePOSTRequest(url, parameters) {
      http_request = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) {
         	// set type accordingly to anticipated content type
            //http_request.overrideMimeType('text/xml');
            http_request.overrideMimeType('text/html');
         }
      } else if (window.ActiveXObject) { // IE
         try {
            http_request = new ActiveXObject("Msxml2.XMLHTTP");
         } catch (e) {
            try {
               http_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
         }
      }
      if (!http_request) {
         alert('Cannot create XMLHTTP instance');
         return false;
      }
      
      http_request.onreadystatechange = alertContents;
      http_request.open('POST', url, true);
      http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
      http_request.setRequestHeader("Content-length", parameters.length);
      http_request.setRequestHeader("Connection", "close");
      http_request.send(parameters);
   }

   function alertContents() {
      if (http_request.readyState == 4) {
         if (http_request.status == 200) {
            //alert(http_request.responseText);
            result = http_request.responseText;
            //document.getElementById('myspan').innerHTML = result;            
         } else {
            //alert('There was a problem with the request.');
         }
      }
   }
   
   function submitMailForm(obj) {
      if(ValidateMailForm()){
      	var poststr = "mailchamps=" + encodeURI( document.getElementById("mailchamps").value ) ;
      	makePOSTRequest('mailing.php', poststr);
      	//mail(document.getElementById("mailing"));
      	document.getElementById("mailingenvoyer").innerHTML="";
		document.getElementById("confirmMailing").innerHTML="Votre inscription à la mailinglist a été enregistrée";
      }
   }
   
   
   function submitInscriptionForm(obj) {
      if(ValidateInscriptionForm()){
		  var poststr = "nomChamps=" + encodeURI( document.getElementById("nomChamps").value ) 
		  + "&prenomChamps=" + encodeURI( document.getElementById("prenomChamps").value )
		  + "&emailChamps=" + encodeURI( document.getElementById("emailChamps").value )
		  + "&telChamps=" + encodeURI( document.getElementById("telChamps").value );
		  poststr+="&adresseChamps=" + encodeURI( document.getElementById("adresseChamps").value )
		  makePOSTRequest('inscription.php', poststr);
		  document.getElementById("inscriptionenvoyer").innerHTML="";
		  document.getElementById("confirmation").innerHTML="Votre inscription a été enregistrée";
	  }
   }
   
/**
 * email validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */

function echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   alert("E-mail invalide")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    alert("E-mail invalide")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    alert("E-mail invalide")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    alert("E-mail invalide")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    alert("E-mail invalide")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    alert("E-mail invalide")
		    return false
		 }

 		 return true					
	}

function ValidateMailForm(){
	var emailID=document.getElementById("mailchamps")
	
	if ((emailID.value==null)||(emailID.value=="")||(emailID.value=="e-mail")){
		alert("Veuillez donner votre email")
		emailID.focus()
		return false
	}
	if (echeck(emailID.value)==false){
		emailID.value=""
		emailID.focus()
		return false
	}
	return true
 }
 
 function ValidateInscriptionForm(){
	var emailID=document.getElementById("emailChamps")
	
	// check email first
	if ((emailID.value==null)||(emailID.value=="")||(emailID.value=="e-mail")){
		alert("Veuillez donner votre email")
		emailID.focus()
		return false
	}
	if (echeck(emailID.value)==false){
		emailID.value=""
		emailID.focus()
		return false
	}
	var name = document.getElementById("nomChamps")
	if ((name.value==null)||(name.value=="")){
		alert("Veuillez donner votre nom")
		name.focus()
		return false
	}
	var firstname = document.getElementById("prenomChamps")
	if ((firstname.value==null)||(firstname.value=="")){
		alert("Veuillez donner votre prenom")
		firstname.focus()
		return false
	}
	var adress = document.getElementById("adresseChamps")
	if ((adress.value==null)||(adress.value=="")){
		alert("Veuillez donner votre adresse")
		adress.focus()
		return false
	}
	

	
	return true
 }