//跨浏览器添加事件
/*
function addEvent(obj, type, fn){if(typeof obj.addEventListener != 'undefined'){obj.addEventListener(type, fn, false);}else if(typeof obj.attachEvent != 'undefined'){obj.attachEvent('on' + type, function(){fn.call(obj,window.event);});}
}
*/
//浏览器监测
(function(){window.sys = {};                                     //外部访问浏览器信息对象；var ua = navigator.userAgent.toLowerCase();            //浏览器信息字符串var s;                                                //浏览器名称加版本
(s = ua.match(/msie ([\d.]+)/)) ? sys.ie = s[1] :(s = ua.match(/firefox\/([\d.]+)/)) ? sys.firefox = s[1] :(s = ua.match(/chrome\/([\d.]+)/)) ? sys.chrome = s[1] :(s = ua.match(/opera\/.*version\/([\d.]+)/)) ? sys.opera = s[1] :(s = ua.match(/version\/([\d.]+).*safari/)) ? sys.safari = s[1] : 0 ;if(/webkit/.test(ua)) sys.webkit = ua.match(/webkit\/([\d.]+)/)[1];//alert(sys.webkit);
})();//dom加载
function addDomLoaded(fn){var isReady = false;var timer = null;function doReady(){if(timer){clearInterval(timer);}if(isReady){return;}isReady = true;fn();}if((sys.opera && sys.opera < 9) || (sys.firefox < 3) || (sys.webkit && sys.webkit < 525)){timer = setInterval(function(){if(document && document.getElementById && document.getElementsByTagName && document.body){doReady();}},1);    }else if(document.addEventListener){addEvent(document, 'DOMContentLoaded', function(){fn();removeEvent(document, 'DOMContentLoaded', arguments.callee);});}else if(sys.ie && sys.ie < 9){var timer = null;timer = setInterval(function(){try{document.documentElement.doScroll('left');doReady();}catch(e){};},1);}
}function addEvent(obj, type, fn){if(typeof obj.addEventListener != 'undefined'){obj.addEventListener(type, fn, false);}else{if(!obj.events)obj.events = {};if(!obj.events[type]){obj.events[type]=[];if(obj['on' + type]) obj.events[type][0] = fn;}else{if(addEvent.equal(obj.events[type], fn)) return false;}obj.events[type][addEvent.ID++] = fn;obj['on' + type] = addEvent.exec;    }
}addEvent.ID = 1;addEvent.exec = function (event) {var e = event || addEvent.fixEvent(window.event);var es = this.events[e.type];for(var i in es){es[i].call(this, e);};
}addEvent.equal = function(es, fn){for(var i in es){if(es[i] == fn)return true}return false;}addEvent.fixEvent = function(event){event.preventDefault = addEvent.fixEvent.preventDefault;event.stopPropagation = addEvent.fixEvent.stopPropagation;event.target = event.srcElement;return event;
}addEvent.fixEvent.preventDefault = function(){this.returnValue = false;
}addEvent.fixEvent.stopPropagation = function(){this.cancelBubble = true;
}//跨浏览器删除事件
/*
function removeEvent(obj, type, fn){if(typeof obj.removeEventListener != 'undefined'){obj.removeEventListener(type, fn, false);}else if(typeof obj.detachEvent != 'undefined'){obj.detachEvent('on'+type, fn);}
}
*/
function removeEvent(obj, type, fn){if(typeof obj.removeEventListener != 'undefined'){obj.removeEventListener(type, fn, false);}else{if(obj.events){for(var i in obj.events[type]){if(obj.events[type][i] == fn){delete obj.events[type][i];}}}}
}//跨浏览器获取视口大小
function getInner(){if(typeof window.innerWidth != 'undefined'){return {width:window.innerWidth,height:window.innerHeight}}else{return {width:document.documentElement.clientWidth,height:document.documentElement.clientHeight}}
}function getScroll(){return {top:document.documentElement.scrollTop || document.body.scrollTop,left:document.documentElement.scrollLeft || document.body.scrollLeft}
}//获取STYLE
function getStyle(element, attr){var value;if(typeof window.getComputedStyle != 'undefined'){value = window.getComputedStyle(element,null)[attr];}else if(typeof element.currentStyle != 'undefined'){value = element.currentStyle[attr];}return value;
}//判断class是否存在
function hasClass(element, className){return element.className.match(new RegExp('(\\s|^)'+className+'(\\s|$)'))
}//添加LINK规则
function insertRule(sheet, selectorText,cssText, postion){if(typeof sheet.insertRule != 'undefined'){sheet.insertRule(selectorText + '{' + cssText + '}', 0);}else if(typeof sheet.addRule != 'undefined'){sheet.addRule(selectorText,cssText, postion);}
}function deleteRule(sheet, index){if(typeof sheet.deleteRule != 'undefined'){sheet.deleteRule(index);}else if(typeof sheet.removeRule !='undefined'){sheet.removeRule(index);}
}function getInnerText(element){return (typeof element.textContent == 'string') ? element.textContent : element.innerText;
}function setInnerText(element, text){if(typeof element.textContent == 'string'){element.textContent = text;}else{element.innerText = text;}
}function offsetTop(element){var top = element.offsetTop;var parent = element.offsetParent;while(parent != null){top += parent.offsetTop;parent = parent.offsetParent;}return top;
}//删除左右空格
function trim(str){return str.replace(/(^\s*)|(\s*$)/g, '');
}function inArray(array, value){for(var i in array){if(array[i] === value){return true;}}return false;
}function predef(e){e.preventDefault();
}function prevIndex(current, parent){var length = parent.children.length;if(current == 0) return length-1;return parseInt(current) - 1;
}function nextIndex(current, parent){var length = parent.children.length;if(current == length - 1) return 0;return parseInt(current) + 1;
}function fixedScroll(){
//setTimeout(function(){    window.scrollTo(fixedScroll.left, fixedScroll.top);
//},100);
}
/*
function scrollTop(){document.documentElement.scrollTop = 0;document.body.scrollTop = 0;
}*///阻止默认行为
function predef(e) {e.preventDefault();
}//创建cookie
function setCookie(name, value, expires, path, domain, secure) {var cookieText = encodeURIComponent(name) + '=' + encodeURIComponent(value);if (expires instanceof Date) {cookieText += '; expires=' + expires;}if (path) {cookieText += '; expires=' + expires;}if (domain) {cookieText += '; domain=' + domain;}if (secure) {cookieText += '; secure';}document.cookie = cookieText;
}//获取cookie
function getCookie(name) {var cookieName = encodeURIComponent(name) + '=';var cookieStart = document.cookie.indexOf(cookieName);var cookieValue = null;if (cookieStart > -1) {var cookieEnd = document.cookie.indexOf(';', cookieStart);if (cookieEnd == -1) {cookieEnd = document.cookie.length;}cookieValue = decodeURIComponent(document.cookie.substring(cookieStart + cookieName.length, cookieEnd));}return cookieValue;
}//删除cookie
function unsetCookie(name) {document.cookie = name + "= ; expires=" + new Date(0);
}