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

After looking at the event object and "duckduckgoing" a bit:

$('input').on('paste', function (event) {
    if (event.originalEvent.clipboardData.getData('Text').match(/[^\d]/)) {
        event.preventDefault();
    }
});

I've got no idea how cross-browser this is but if backwards compatibility is no issue go ahead and use it.

Check it out at codepen

PS: I'm using google chrome version 22 on mac os 10.6

EDIT: firefox 13 does not have the clipboardData object, ie 10 neither, safari 5.1.2 supports it (so it's a webkit feature).