http://lattestphones.blogspot.com/
http://latesttechnologyblog.blogspot.com/ http://home-safety-tips.blogspot.com/ On 3/19/09, ScottD <ads...@gmail.com> wrote: > > > I have a code block like the following: > > $(document).ready(function(event) { > $('#txtField').blur(function() { > if (invalid(this.value)) > { > event.preventDefault(); > //display error message > } > }); > }); > > My purpose is to check for the input the users key-in and keep the > focus at the current text field if the input is invalid. But when I > jump to other fields by TAB or by mouse clicking, everything happens > as normal. Do you suggest any way to prevent the changing focus > action? > Indeed, the W3C DOM Event Specification states that *blur* event is > not cancelable, so I can understand why its default action cannot be > prevented. But how come when I try to view event.cancelable in > Firefox, it shows *true*?! > If I replace event.preventDefault() with $(this).focus(), it works in > IE, but not in Firefox. >
