/*** 批量替换方法,批量过滤特殊字符,通常用在通过后的各种编辑器添加的内容在App上编辑上使用* james.wang 2016-11-11* 使用方法：ReCont(Content,["<br>", "<br/>", "<p>", "</p>"])* @param {Object} strCont 要替换的内容* @param {Object} array   内容里需要替换的字符串数组*/
function ReEditer(strCont, array) {for (var i in array) {var item = array[i];//alert(item);var reg = new RegExp("\\" + item, "g");switch(item) {case '<br>':strCont = strCont.replace(reg, "\n");break;case '<br/>':strCont = strCont.replace(reg, "\n");break;case '<p>':strCont = strCont.replace(reg, "");break;case '</p>':strCont = strCont.replace(reg, "\n");break;case '&nbsp;':strCont = strCont.replace(reg, "\ ");break;default:strCont = strCont.replace(reg, "");break;}}return strCont;
}

/*** 获取所有选中的checkbox值* 返回值是以逗号分隔的字符串,如：2562，2568，6532，5268  如果没有选择返回空*/
function getCheckBox() {var chk_value = [];var stringValue = "";$('input[name="grade"]:checked').each(function() {chk_value.push($(this).val());});if (chk_value.length == 0)return "";else {for (var i in chk_value) {stringValue += chk_value[i] + ',';}        stringValue=stringValue.substring(0, stringValue.length - 1); //去掉最后一个逗号}return stringValue;
}

/**生成唯一字符串 */
function NewGuid() {function S4() {return (((1 + Math.random()) * 0x10000) | 0).toString(16).substring(1);}return (S4() + S4() + "-" + S4() + "-" + S4() + "-" + S4() + "-" + S4() + S4() + S4());
}

/*** 拼接图片附件，在图片路径前加上当前域名做为全路径* @param {Object} attachments 以逗号分隔的附件字符串*/
function pathString(attachments) {if (attachments != '' && attachments != ' ' && attachments != null) {var pathStr = '';var attArr = attachments.split(',');for (var i in attArr) {pathStr += host + attArr[i] + ",";}return pathStr.substring(0, pathStr.length - 1);} else {return '';}
}

/***把在textarea的换行符和空格符替换为相应的html表达字符 * @param {Object} strCont* @param {Object} array*/
function Retextarea(strCont, array) {for (var i in array) {var item = array[i];var reg = new RegExp("\\" + item, "g");switch(item) {case '\r\n':strCont = strCont.replace(reg, "<br/>");break;case '\ ':strCont = strCont.replace(reg, "&nbsp;");break;default:strCont = strCont.replace(reg, "");break;}}return strCont;
}

// 对Date的扩展，将 Date 转化为指定格式的String
// 月(M)、日(d)、小时(h)、分(m)、秒(s)、季度(q) 可以用 1-2 个占位符，
// 年(y)可以用 1-4 个占位符，毫秒(S)只能用 1 个占位符(是 1-3 位的数字)
// 例子：
// (new Date()).Format("yyyy-MM-dd hh:mm:ss.S") ==> 2006-07-02 08:09:04.423
// (new Date()).Format("yyyy-M-d h:m:s.S")      ==> 2006-7-2 8:9:4.18
Date.prototype.Format = function (fmt) { //author: meizz var o = {"M+": this.getMonth() + 1, //月份 "d+": this.getDate(), //日 "h+": this.getHours(), //小时 "m+": this.getMinutes(), //分 "s+": this.getSeconds(), //秒 "q+": Math.floor((this.getMonth() + 3) / 3), //季度 "S": this.getMilliseconds() //毫秒
    };if (/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));for (var k in o)if (new RegExp("(" + k + ")").test(fmt)) fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));return fmt;
}

/*** js截取字符串，中英文都能用* @param str：需要截取的字符串* @param len: 需要截取的长度*/
function cutstr(str, len) {var str_length = 0;var str_len = 0;str_cut = new String();str_len = str.length;for (var i = 0; i < str_len; i++) {a = str.charAt(i);str_length++;if (escape(a).length > 4) {//中文字符的长度经编码之后大于4str_length++;}str_cut = str_cut.concat(a);if (str_length >= len) {str_cut = str_cut.concat("...");return str_cut;}}//如果给定字符串小于指定长度，则返回源字符串；if (str_length < len) {return str;}
}

//JQuery:var $isChecked = $("#id").is(":checked");alert($isChecked);//JS:var $id = document.getElementById("id");alert($id.checked);//Notes://JQuery中，is函数里的必须要有冒号，否则不见效；//JS中，必须调用checked 即>>> .checked

//把时间戳转换为当前日期
function ToTime(timestamp) {var newDate = new Date();newDate.setTime(timestamp);return formatDate(newDate);
}

//把时间转换为想要的格式
function formatDate(dateTimeStamp) {var year = dateTimeStamp.getFullYear();var month = dateTimeStamp.getMonth() + 1;var date = dateTimeStamp.getDate();var hour = dateTimeStamp.getHours();var minute = dateTimeStamp.getMinutes();var second = dateTimeStamp.getSeconds();//今天的时间戳var p_minute = 1000 * 60;var p_hour = p_minute * 60;var p_day = p_hour * 24;var p_month = p_day * 30;var nowtTimeStamp = new Date().getTime();var diffValue = nowtTimeStamp - dateTimeStamp;var monthC = diffValue / p_month;var weekC = diffValue / (7 * p_day);var dayC = diffValue / p_day;var hourC = diffValue / p_hour;var minC = diffValue / p_minute;//现在的时间var dateN = new Date();var hourD = hourC - dateN.getHours();var dayD = dayC - dateN.getDate();//alert(dayC+','+monthC);if (hourD < 0) {result = hour + ":" + minute;} else if (hourD > 0 && hourD < 24) {result = "昨天 " + hour + ":" + minute;} else if (dayC > 2 && monthC < 12) {//result = month + "月" + date + "日   " + hour + ":" + minute;result = month + "-" + date + " " + hour + ":" + minute;} else {//result = year + "年" + month + "月" + date + "日   " + hour + ":" + minute;//result = month + "月" + date + "日   " + hour + ":" + minute;result = month + "-" + date + " " + hour + ":" + minute;}return result;
}

//JS Replace 全部替换字符 用法.var r= "1\n2\n3\n";
//将字母\n替换成分号
alert(r.replace(/\n/g, ";"));结果：1;2;3; replace 的第一个参数可以是正则表达式，/g标识全文匹配。