Disable copy paste of alphabets in text field using jquery

Question

In my project i have text field that only take numeric value.but when I copy an alphabets using ctl+c and paste using ctl+v it will allow the alphabets in the text field.So

Answer 1

I've updated the answer of jaychapani a bit. Here I've added support for arrow keys. and prevent pressing of % & ( keys.

    $("input").bind('keypress', function (e) {
    if (e.keyCode == '9' || e.keyCode == '16') {
        return;
    }
    var code;
    if (e.keyCode) code = e.keyCode;
    else if (e.which) code = e.which;
    if (e.which == 46)
        return false;
    if (e.which == 33 || e.which == 64 || e.which == 35 || e.which == 36 || e.which == 37 || e.which == 94 || e.which == 38 || e.which == 42 || e.which == 40 || e.which == 41)
        return false;
    if (code == 8 || code == 46)
        return true;
    if (code == 37 || code == 38 || code == 39 || code == 40)
        return true;
    if (code < 48 || code > 57)
        return false;
});


$("input").bind("paste", function (e) {
    e.preventDefault();
});
$("input").bind('mouseenter', function (e) {
    var val = $(this).val();
    if (val != '0') {
        val = val.replace(/[^0-9]+/g, "")
        $(this).val(val);
    }
});

JSFiddle Demo

Thank you.