一个不错的jquery插件模版

(function ($) {

$.PagePlugin = function (obj, opt) {

var options = $.extend({}, $.PagePlugin.defaults),
    docOffset,
    _ua = navigator.userAgent.toLowerCase(),
    is_msie = /msie/.test(_ua),
    ie6mode = /msie [1-6]\./.test(_ua);

if (typeof (obj) !== ‘object‘) {
    obj = $(obj)[0];
}

if (typeof (opt) !== ‘object‘) {
    opt = {};
}

function setOptions(opt) {
    if (typeof (opt) !== ‘object‘) opt = {};
    options = $.extend(options, opt);
}

//自定义方法，需要在下面api声明
function setImage(src, callback) {

    if (typeof (callback) == ‘function‘) {
        callback.call(api);
    }
}

setOptions(opt);
var $orig = $(obj);

//调用内部方法
ScoreManager.getBo();
ScoreManager.getCo();

//scoreManager，相当于自定义类
var ScoreManager = (function () {
    function getScore1(){
        alert("key1");
    }

    function getScore2(){
        alert("key2");
    }

    return {
        getBo: getScore1,
        getCo: getScore2
    };

}());

 //定义api
var api = {
    setImage: setImage,
    focus:ScoreManager.getBo,
    getBounds: function () {
        return [1, 2];
    }

};

$orig.data(‘PagePlugin‘, api);
return api;
}

//设置默认属性
$.PagePlugin.defaults = {
	marginT: 0,
	marginL: 0
};
}(jQuery));

var api = null;

//这里"#page_plugins"我定义为传入控件的内容，可能为id，亦可能class。

api = $.PagePlugin("#page_plugins", {
marginT: 10,
marginL: 20
});

api.getBounds();
api.setImage("h1", function () {

});