var form = "";
var submitted = false;
var error = false;
var error_message = "";

function check_input(field_name, message) {
  if (form.elements[field_name] && (form.elements[field_name].type != "hidden")) {
    var field_value = form.elements[field_name].value;

    if (field_value == '') {
      error_message = error_message + "* " + message + "\n";
	  form.elements[field_name].style.backgroundColor = "#e85830";
      error = true;
    }
	else{
		form.elements[field_name].style.backgroundColor = "#fff";
	}	
  }
}

function check_checkbox(field_name, message) {
  form.elements[field_name].style.backgroundColor = "";
  if (form.elements[field_name] && (form.elements[field_name].type != "hidden")) {
    var field_value = form.elements[field_name].checked;

    if (field_value == false) {
      error_message = error_message + "* " + message + "\n";
      form.elements[field_name].style.backgroundColor = "#F3C200";
      error = true;
    }
	else{
		form.elements[field_name].style.backgroundColor = "#fff";
	}
  }
}

function check_date(field_name, message, dag) {
  if (form.elements[field_name] && (form.elements[field_name].type != "hidden")) {
    var field_value = form.elements[field_name].value;

    if (field_value == '') {
      error_message = error_message + "* " + message + "\n";
	  form.elements[field_name].style.backgroundColor = "#e85830";
      error = true;
    }
    if (field_value == dag){
      error_message = error_message + "* " + message + "ne peut être égal à la date du jour\n";
	  form.elements[field_name].style.backgroundColor = "#e85830";
      error = true;
    }
  }
}

function check_email(field_name, message) {
  if (form.elements[field_name] && (form.elements[field_name].type != "hidden")) {
    var field_value = form.elements[field_name].value;

    if (field_value == '') {
      error_message = error_message + "* " + message + "\n";
	  form.elements[field_name].style.backgroundColor = "#e85830";
      error = true;
    }
    else{
      var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
      if (!filter.test(field_value)){
        error_message = error_message + "* Votre adresse E-Mail n'est pas valide.\n";
		form.elements[field_name].style.backgroundColor = "#e85830";
        error = true;
      }
	  else{
		form.elements[field_name].style.backgroundColor = "#fff";
	  }
    }
  }
}

function check_radio(field_name, message) {
  var isChecked = false;

  if (form.elements[field_name] && (form.elements[field_name].type != "hidden")) {
    var radio = form.elements[field_name];

    for (var i=0; i<radio.length; i++) {
      if (radio[i].checked == true) {
        isChecked = true;
        break;
      }
    }

    if (isChecked == false) {
      error_message = error_message + "* " + message + "\n";
	  form.elements[field_name].style.backgroundColor = "#e85830";
      error = true;
    }
  }
}

function check_select(field_name, field_default, message) {
  if (form.elements[field_name] && (form.elements[field_name].type != "hidden")) {
    var field_value = form.elements[field_name].value;

    if (field_value == field_default) {
      error_message = error_message + "* " + message + "\n";
	  form.elements[field_name].style.backgroundColor = "#e85830";
      error = true;
    }
  }
}