Set a custom 'paste' event in jQuery 1.4.1

gistfile1.js

// set custom event
var name = 'paste';
$.fn[name] = function(fn) {
  return fn ? this.bind(name, fn) : this.trigger(name);
};

// prevented paste event
$('#mySelector').bind(name, function(){ 
  return !1; // false
})