how prevent submit on press enter in twitter bootstrap typeahead plugin

Question

I have a input text and I apply it typeahead plugin for suggesting items, but when I press enter key on input text it submit form.

How can I prevent form submit using tw

Answer 1

The first answer didn't worked for me, maybe because of updating the typeahead plugin, but I did passed the problem by using the 'alternative' input created by typehead:

$(".twitter-typeahead > input").focus(function(){
    //disable btn when focusing the input
    $("#my_submit_button").prop('disabled', true);
}).blur(function(){
    //enable btn when bluring the input
    $("#my_submit_button").prop('disabled', false);
});