// Validates number-key-press
function isNumberKey(evt) {
	var charCode = (evt.which) ? evt.which : event.keyCode
	if ((charCode > 31 && (charCode < 48 || charCode > 57)))
		return false;
	return true;
}

// Validates email
function isMail(_email) {
     var emailReg = /^[a-z][a-z-_0-9\.]+@[a-z-_=>0-9\.]+\.[a-z]{2,3}$/i
     return emailReg.test(_email);
}

// Redirects to URL if user accepts
function redirectQuestion(message,url) {
	var name = confirm(message)
	if (name == true)
		document.location.href=url;
	return;
}