备份。。

wong2.js

/**
 * Copyright 2011 wong2 <wonderfuly@gmail.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
(function(){
    var wong2 = {};
    
    wong2.$ = function(id){
        return document.getElementById(id);
    }

    // dom模块
    wong2.dom = {
        // 一个通过class获取元素的函数
        getElementsByClassName: document.getElementsByClassName || function(classname, node){
            node = node || document.body;
            var i, j;
            var result = [];
            var re = new RegExp('\\b' + classname + '\\b');
            var child_nodes = node.getElementsByTagName("*");
            for(i=0,j=child_nodes.length; i<j; i++){
                if(re.test(child_nodes[i].className)){
                    result.push(child_nodes[i]);
                }
            }
            return result;
        },
        // 获取页面元素相对于整个文档左上角的位置
        getPosition: function(id_or_node){
            var node = typeof id_or_node=="string"?document.getElementById(id_or_node):id_or_node;
            var x = node.offsetLeft;
            var y = node.offsetTop;
            while (node = node.offsetParent) {
                x += node.offsetLeft;
                y += node.offsetTop;
            }
            return {'x': x, 'y': y};
        },
        // 为element添加新的class
        addClass: function(element, name){
            element.className += " " + name;
        },
        // 为element移除一个class
        removeClass: function(element, classname){
            element.className = wong2.string.trim(
                element.className.replace(classname, "")
            );
        }
    };

    wong2.event = {
        // 添加事件处理函数
        addHandler: function(element, type, handler){
            if (element.addEventListener){
                element.addEventListener(type, handler, false);
            } else if (element.attachEvent){
                element.attachEvent("on" + type, handler);
            } else {
                element["on" + type] = handler;
            }
        },
        // 移除事件处理函数
        removeHandler: function(element, type, handler){
            if (element.removeEventListener){
                element.removeEventListener(type, handler, false);
            } else if (element.detachEvent) {
                element.detachEvent("on" + type, handler);
            } else {
                element["on" + type] = null;
            }
        },
        // 获取event对象
        getEvent: function(event){
            return event || window.event;
        },
        getTarget: function(event){
            return event.target || event.srcElement;
        },
        // 取消默认行为
        preventDefault: function(event){
            if(event.preventDefault){
                event.preventDefault();
            } else {
                event.returnValue = false;
            }
        },
        stopPropagation: function(event){
            if(event.stopPropagation){
                event.stopPropagation();
            } else {
                event.cancelBubble = true;
            }
        },
        // 获取鼠标按键
        getButton: function(event){
            if(document.implementation.hasFeature("MouseEvents", "2.0")){
                return event.button;
            } else {
                switch(event.button){
                    case 0:
                    case 1:
                    case 3:
                    case 5:
                    case 7:
                        return 0;
                    case 2:
                    case 6:
                        return 1;
                    case 4:
                        return 2;
                }
            }
        },
        // 获取键盘按键的码
        getCharCode: function(event){
            return event.charCode || event.keyCode;
        }
    };

    wong2.bom = {
        // copied from lifesinger，判断是否IE
        isIE876 : !+'\v1',
        isIE76  : !'0'[0],
        isIE6   : this.isIE76 && !window.XMLHttpRequest
    };

    wong2.cookie = {
        setCookie: function(name, value){
            document.cookie = name + "=" + encodeURIComponent(value);
        },
        getCookie: function(name){
            var allcookies = document.cookie;
            var pos = allcookies.indexOf(name+"=");
            if(pos != -1){
                var start = pos + name.length + 1;
                var end = allcookies.indexOf(";", start);
                if (end == -1) {
                    end = allcookies.length;
                }
                var value = allcookies.substring(start, end);
                return decodeURIComponent(value);
            }
            return -1;
        },
        deleteAllCookies: function(){
            var cookies = document.cookie.split(";");
            for (var i = 0; i < cookies.length; i++) {
                var cookie = cookies[i];
                var eqPos = cookie.indexOf("=");
                var name = eqPos > -1 ? cookie.substr(0, eqPos) : cookie;
                document.cookie = name + "=;expires=Thu, 01 Jan 1970 00:00:00 GMT";
            }
        }
    };

    wong2.string = {
        // 移除字符串首尾空白
        trim: function(s){
            return s.replace(/^\s+|\s+$/g, "");
        }
    };

    wong2.ajax = {
        ajax: function(method, url, data, callback){
            var xhr = typeof XMLHttpRequest !== "undefined"?
                (new XMLHttpRequest())
                :(new ActiveXObject("Msxml2.XMLHTTP"));

            xhr.onreadystatechange = function(){
                if(xhr.readyState == 4){
                    if(xhr.status>=200 && xhr.status<300 || xhr.status==304){
                        callback.apply(null, xhr);
                    }
                }
            }
            if(method == "get"){
                xhr.open("get", url, true);
                xhr.send(null);
            } else if (method == "post") {
                xhr.open("post", url, true);
                xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
                xhr.send(data);
            }
        },
        get: function(url, callback){
            wong2.ajax.ajax("get", url, null, callback);
        },
        post: function(url, data, callback){
            wong2.ajax.ajax("post", url, data, callback);
        }
    };

    wong2.style = {
        get: function(obj, attr){
            return obj.style[attr];
        },
        set: function(obj, attr, value){
            obj.style[attr] = value;
        },
        // 获取元素的opacity属性
        getOpacity :function(obj){
            var opacity_pattern = /opacity=(\d+)/;
            var opacity = 1;
            if(!wong2.bom.isIE876){
                var tmp = obj.style.opacity;
                if(tmp){
                    opacity = tmp;
                }
            }
            else{
                var tmp = obj.style.filter.match(opacity_pattern);
                if(tmp){
                    opacity = tmp[1] / 100;
                }
            }
            opacity = parseFloat(opacity);
            var fixed = opacity.toFixed(2);
            return parseFloat(fixed);
        },
        // 设置元素的opacity属性
        setOpacity: function(obj, opacity){
            var style_obj = obj.style;
            var opacity_pattern = /opacity=(\d+)/;
            if(!wong2.bom.isIE876){
                style_obj.opacity = "" + opacity;
            }
            else{
                var filter = style_obj.filter;
                var opacity = Math.floor(opacity*100);
                if(opacity_pattern.test(filter)){
                    style_obj.filter = filter.replace(opacity_pattern, "opacity=" + opacity);
                }
                else{
                    style_obj.filter = "alpha(opacity=" + opacity + ")";
                }
            }
        }
    };
    
    wong2.effect = {
        animate: function(obj, option){
            var step = 2;
            var attr   = option.attr;
            var value  = option.value;
            var suffix = option.suffix || "";
            var interval = option.interval || 1;
            var func  = option.func  || function(t){return t;};
            if(obj.timeout){
                clearInterval(obj.timeout)
            }
            obj.timeout = null;
            
            function perform(determin, calc){
                clearInterval(obj.timeout);
                obj.timeout = setInterval(function(){
                    step = func(step);
                    var current_value = parseFloat(wong2.style.get(obj, attr) || "0");
                    if(determin(current_value, value)){
                        clearInterval(obj.timeout);
                    }
                    wong2.style.set(obj, attr, calc(current_value, step) + suffix);
                }, interval);
            }
            
            var old_value = parseFloat(wong2.style.get(obj, attr));            
            if(Math.abs(value-old_value) <= 5){
                return;
            }
            else if(value > old_value){
                perform(function(a, b){
                    return a >= b;
                }, function(a, b){
                    return a + b;
                });
            }
            else{
                perform(function(a, b){
                    return a <= b;
                }, function(a, b){
                    return a - b;
                });
            }
        }
    };

    window.wong2 = wong2;
}());