/*
 * 常用的验证集合
 * useage:if(validate.isemail(email)){...}else{....}
 * last update 2015-07-29
 */
String.prototype.trim = function(){
    return this.replace(/(^\s*)|(\s*$)/g, "");
}
String.prototype.ltrim = function(){
    return this.replace(/(^\s*)/g, "");
}
String.prototype.rtrim = function(){
    return this.replace(/(\s*$)/g, "");
}
var validate = {
    //是否电话号码
    isphone: function (value) {
        var patrn = /^((\+?86)|(\(\+86\)))?\d{3,4}-\d{7,8}(-\d{3,4})?$/
        if (!patrn.exec(value)) return false
        return true
    },
    //是否手机号码
    iscellphone: function (value) {
        var validateReg = /^((\+?86)|(\(\+86\)))?1\d{10}$/;
        return validateReg.test(value);
    },
    //是否邮箱
    isemail: function(value){
        var emailRegex = /^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/;
        return emailRegex.test(value);
    },
    //是否为空
    isempty: function(value){
        if(value.length == 0) return true
        return false;
    },
    //是否为18位身份证号码
    id18:	function (id) {
        if(! /\d{17}[\dxX]/.test(id)) {
            return false;
        }
        var modcmpl = function(m, i, n) { return (i + n - m % i) % i; },
            f = function(v, i) { return v * (Math.pow(2, i-1) % 11); },
            s = 0;
        for(var i=0; i<17; i++) {
            s += f(+id.charAt(i), 18-i);
        }
        var c0 = id.charAt(17),
            c1 = modcmpl(s, 11, 1);
        return c0-c1===0 || (c0.toLowerCase()==='x' && c1===10);
    },
    //是否为15位身份证号码，2013年1月1日起停止使用
    id15:function (id) {
        var pattern = /[1-9]\d{5}(\d{2})(\d{2})(\d{2})\d{3}/;
        matches, y, m, d, date;
        matches = id.match(pattern);
        y = +('19' + matches[1]);
        m = +matches[2];
        d = +matches[3];
        date = new Date(y, m-1, d);
        return (date.getFullYear()===y && date.getMonth()===m-1 && date.getDate()===d);
    },
    //是否为IP地址
    isip:function(ip){
        var ipRegex = /^((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\.){3}(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})$/i;
        return ipRegex.test(ip);
    },
    //是否为URL地址
    isurl:function(url){
        var urlRegex = /^((http|https):\/\/(\w+:{0,1}\w*@)?(\S+)|)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?$/;
        return urlRegex.test(url);
    },
    haschinese:function(value){
        var patrn=/[\u4E00-\u9FA5]|[\uFE30-\uFFA0]/gi;
        if(!patrn.exec(value)){
            return false;
        }else{
            return true;
        }
    }

}