// JavaScript Document

function verifEmail(email) {
	invalidMailChars = "/\?!()<^>àâèéêëîïôöùûç#%*µ¨£$,;:+{}'";
	erreurMail=false;
	//recherche des caractères contenus dans invalidChars	
	for (i=0;i<invalidMailChars.length;i++){
		if(email.indexOf(invalidMailChars.charAt(i))!=-1) {
			erreurMail=true;
		}
	}
	if  (email.indexOf(' ')!==-1 ) {erreurMail=true;} // si il n'y a un espace
	if  (email.indexOf('.')==-1  || email.indexOf('@')==-1) {erreurMail=true;} // si il n'y a ni "@" ni "."
	if  (email.indexOf('..')!==-1 || email.indexOf('@.')!==-1 || email.indexOf('.@')!==-1) {erreurMail=true;} // si il y a ".." ,".@","@."
	if  (email.indexOf('@')!=email.lastIndexOf('@')) {erreurMail=true;} // si il y a plus de deux "@"
	if ((email.indexOf('@')==0) || (email.indexOf('.')==0) || (email.lastIndexOf('@')==email.length-1) || (email.lastIndexOf('.')==email.length-1)) {erreurMail=true;} // si  "@" ou "." commencent ou finissent => si il n'y a que un "." ou un "@" ou ".@" ou "@."
	if ((email.lastIndexOf('@')-email.lastIndexOf('.'))>1) {erreurMail=true;} // si le dernier "." est avant "@"
	if (email.length-1-email.lastIndexOf('.')==1) {erreurMail=true;} // si le dernier "." est suivi d'un seul caractere

	return erreurMail;		
}

function IsNumeric(strString)
//  check for valid numeric strings	
{
  var strValidChars = "0123456789.-";
  var strChar;
  var blnResult = true;

  if (strString.length == 0) return false;

  //  test strString consists of valid characters listed above
  for (i = 0; i < strString.length && blnResult == true; i++)
  {
    strChar = strString.charAt(i);
    if (strValidChars.indexOf(strChar) == -1)
    {
      blnResult = false;
    }
  }
  return blnResult;
}


function validForm() {
	error = "";
	with(document.contact) {
		if(name.value == "") {
			error += " Your name is missing\n";
		}
		if(surname.value == "") {
			error += " Your surname is missing\n";
		}
		if(country.value == "Country") {
			error += " Your country is missing\n";
		}
		if(phone.value == "") {
			error += " Your phone is missing\n";
		}
		if(comment.value == "") {
			error += " Your comment is missing\n";
		}

		//EMAIL VALID
		if(verifEmail(email.value)) {
			error += " Your e-mail is not valid\n";
		}			
	}
	
	if(error!= "") {
		error = "The form has errors in the following fields : \n"+error
		alert(error);
		return false;
	} else {
		document.contact.submit();
	}
}