jQuery live() and die() plugin

live-n-die.js

// jQuery live() and die() plugin for newer version jQuery (version newer than 1.7)
// meant to facilitate gradual upgrade of old jQuery code to a newer version
jQuery.fn.live = function (eventTypes, eventHandler) {
    var that = $(this);

    $(document).on(eventTypes, that['selector'], eventHandler);

    return that;
};

jQuery.fn.die = function (eventTypes, eventHandler) {
    var that = $(this);

    $(document).off(eventTypes, that['selector'], eventHandler);

    return that;
};