jQuery prepopulate and format a text field -

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this confusing me.

i have php app text field, client wants field prepopulated 896- , followed user input of 5 numeric values, 896-12569. i

i in jquery, possible, if how?

i'd suggest doing using css, here jquery solution:

$('input').on('keyup', function() {   var prefix = '896-';   var value = this.value.replace(prefix, '').replace(/[^\d]/, '').substr(0, 5);   this.value = prefix + value; }).keyup(); // trigger keyup event, field populated @ load

obviously swap input relevant selector, , add events necessary (this example works on keyup event).

edit

having looked @ code again, noticed there's small bug (press backspace once), ths prefix gets added again (this because isn't removed input because no longer matches), quick fix replace first 4 characters of input:

var value = this.value.replace(this.value.substr(0, 4), '').replace(/[^\d]/, '').substr(0, 5);

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