function fieldsetEmpty(name) {
	var field = $("#" + name);
	var value = $.trim(field.val());
	return (value == "" || value == field.attr("title"));
}

function fieldsetInvalidEmail(name) {
   	var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
   	return !(reg.test(fieldsetValue(name)));
}

function fieldsetValue(name) {
	if (fieldsetEmpty(name)) return "";
	return $.trim($("#" + name).val());
}

function fieldsetClear(name) {
	var field = $("#" + name);
	field.attr("value", "");
}