call function.method()

call function.method()


I'm trying to create a function and methods within it.
What I want to do is to develop a form validation plugin.
I want to accomplish the following:
if ( $("#field_id").validate.isFullName() ) {
alert("is full name");
} else {
alert("is not full name");
}
what I've come up with is this:
$.fn.validate = {
isFullName: function() {
if ( $(this).val.match(/^[a-z]+$/i) ) {
return true;
} else {
return false;
}
}
}
but it doesn't work. Does anybody know how I can fix that?