Restricting input with jQuery

Restricting input with jQuery

$('.phoneInput').keypress(function(key) {
        if(key.charCode < 48 || key.charCode > 57) return false;
});

>$('.surnameInput').keypress(function(key) {
if((key.charCode < 97 || key.charCode > 122) && 
(key.charCode < 65 || key.charCode > 90) && 
(key.charCode != 45)) return false;
});

DEMO