function checkAuth(form) {

	var error = '';

	if (form.login.value=='')
		error += "- Login\n";

	if (form.password.value=='')
		error += "- Password\n";

	if (error!='') {
		window.alert("You must fill in the following fields:\n" + error);
	} else {
		form.submit();
	}

}

function checkContact(form) {

	var error = '';
	
	if (form.cLastname.value=='')
		error += "- Lastname\n";

	if (form.cFirstname.value=='')
		error += "- Firstname\n";

	if (form.cMail.value=='')
		error += "- Email\n";

	if (form.cRequest.value=='')
		error += "- Your request\n";

	if (error!='') {
		window.alert("You must fill in the following fields:\n" + error);
	} else {
		form.submit();
	}

}

function checkEvent(form) {

	var error = '';
	
	if (form.eLastname.value=='')
		error += "- Lastname\n";

	if (form.eFirstname.value=='')
		error += "- Firstname\n";

	if (form.eMail.value=='')
		error += "- Email\n";

	if (error!='') {
		window.alert("You must fill in the following fields:\n" + error);
	} else {
		form.submit();
	}

}