(function (window) {
    var floatMenu = function (settings) {
        return new floatMenu.fn.init(settings);
    };
    floatMenu.fn = floatMenu.prototype = {
        version: "1.0",
        init: function (settings) {
            this.settings = {};
            util.extends(this.settings, settings);
        },
        load: function () {
            return this.settings.hello;
        }
    }
    floatMenu.fn.init.prototype = floatMenu.fn;

    var util = {
        extends: function (collection, collectionOverride) {
            if (collectionOverride && collection) {
                for (var key in collectionOverride) {
                    collection[key] = collectionOverride[key];
                }
            }
        }
    };

    if (window) {
        window.$fm = window.floatMenu = floatMenu;
    }
})(window);

var fm1 = $fm({ "hello": "world2" });
var fm2 = $fm({ "hello": "world3" });
alert(fm1.load());
alert(fm2.load());
alert(fm1.load());
alert(fm2.load());

function (settings) {
            this.settings = {};
            util.extends(this.settings, settings);
}