function toogleValue(field, org_value) {
	if(!document.getElementById(field)) {
		return false;
	}
	if(document.getElementById(field).value == org_value) {
		document.getElementById(field).value = '';
	} else if(document.getElementById(field).value == '') {
		document.getElementById(field).value = org_value;
	}
}

function validateEmail(field, save) {
	if(!document.getElementById(field)) {
		return false;
	}
	mailRE = new RegExp( );
    mailRE.compile( '^[._a-z0-9-]+@[.a-z0-9-]+[.]{1}[a-z]{2,4}$', 'gi' );
	var result = mailRE.test( document.getElementById(field).value );
	if (result) {
		if(save == 1) {
			MailAddress.save();
		}
		return (true);
	} else {
		alert('Du skal indtaste en gyldig email-adresse.');
		return (false);
	}
}