I have a web page which I have prevented the default action on all submit buttons, however I would like to re-enable default submit action on a button how can I do this?

I am currently preventing the default action using the following:

$("form").bind("submit", function(e){
e.preventDefault();
});

I have successfully done this using the following:

$(document).ready(function(){
$("form:not('#press')").bind("submit", function(e){
e.preventDefault();
});

But can I do this dynamically when the button is clicked?