function cutstr(str, len) {

??? var temp;

??? var icount = 0;

??? var patrn = /[^\x00-\xff]/;

??? var strre = "";

??? for (var i = 0; i < str.length; i++) {

??????? if (icount < len - 1) {

??????????? temp = str.substr(i, 1);

??????????? if (patrn.exec(temp) == null) {

??????????????? icount = icount + 1

??????????? } else {

??????????????? icount = icount + 2

??????????? }

??????????? strre += temp

??????? } else {

??????????? break

??????? }

??? }

??? return strre + "..."

}

function getHost(url) {

??? var host = "null";

??? if(typeof url == "undefined"|| null == url) {

??????? url = window.location.href;

??? }

??? var regex = /^\w+\:\/\/([^\/]*).*/;

??? var match = url.match(regex);

??? if(typeof match != "undefined" && null != match) {

??????? host = match[1];

??? }

??? return host;

}

String.prototype.trim = function() {

??? var reExtraSpace = /^\s*(.*?)\s+$/;

??? return this.replace(reExtraSpace, "$1")

}

String.prototype.replaceAll = function(s1, s2) {

??? return this.replace(new RegExp(s1, "gm"), s2)

}

function HtmlEncode(text) {

??? return text.replace(/&/g, '&').replace(/\"/g, '"').replace(/</g, '<').replace(/>/g, '>')

}

function HtmlDecode(text) {

??? return text.replace(/&/g, '&').replace(/"/g, '\"').replace(/</g, '<').replace(/>/g, '>')

}

Date.prototype.Format = function(formatStr) {

??? var str = formatStr;

??? var Week = ['日', '一', '二', '三', '四', '五', '六'];

??? str = str.replace(/yyyy|YYYY/, this.getFullYear());

??? str = str.replace(/yy|YY/, (this.getYear() % 100) > 9 ? (this.getYear() % 100).toString() : '0' + (this.getYear() % 100));

??? str = str.replace(/MM/, (this.getMonth() + 1) > 9 ? (this.getMonth() + 1).toString() : '0' + (this.getMonth() + 1));

??? str = str.replace(/M/g, (this.getMonth() + 1));

??? str = str.replace(/w|W/g, Week[this.getDay()]);

??? str = str.replace(/dd|DD/, this.getDate() > 9 ? this.getDate().toString() : '0' + this.getDate());

??? str = str.replace(/d|D/g, this.getDate());

??? str = str.replace(/hh|HH/, this.getHours() > 9 ? this.getHours().toString() : '0' + this.getHours());

??? str = str.replace(/h|H/g, this.getHours());

??? str = str.replace(/mm/, this.getMinutes() > 9 ? this.getMinutes().toString() : '0' + this.getMinutes());

??? str = str.replace(/m/g, this.getMinutes());

??? str = str.replace(/ss|SS/, this.getSeconds() > 9 ? this.getSeconds().toString() : '0' + this.getSeconds());

??? str = str.replace(/s|S/g, this.getSeconds());

??? return str

}

function isDigit(value) {

??? var patrn = /^[0-9]*$/;

??? if (patrn.exec(value) == null |