js 验证各种格式类型的正则表达式

    <script src="scripts/jquery-1.4.1.js" type="text/javascript"></script> 
        <script language="javascript" type="text/javascript"> 
            /**
            * 定义验证各种格式类型的正则表达式对象
            */ 
            var Regexs = { 
                email: (/^[0-9a-z][0-9a-z\-\_\.]+@([0-9a-z][0-9a-z\-]*\.)+[a-z]{2,}$/i),//邮箱 
                phone: (/^0[0-9]{2,3}[2-9][0-9]{6,7}$/),//座机手机号码 
                ydphpne: (/^((13[4-9])|(15[012789])|147|182|187|188)[0-9]{8}$/),//移动手机号码 
                allphpne: (/^((13[0-9])|(15[0-9])|(18[0-9]))[0-9]{8}$/),//所有手机号码 
                ltphpne: (/^((13[0-2])|(15[56])|(186)|(145))[0-9]{8}$/),//联通手机号码 
                dxphpne: (/^((133)|(153)|(180)|(189))[0-9]{8}$/),//电信手机号码 
                url: (/^http:\/\/([0-9a-z][0-9a-z\-]*\.)+[a-z]{2,}(:\d+)?\/[0-9a-z%\-_\/\.]+/i),//网址 
                num: (/[^0-9]/),//数字 
                cnum: (/[^0-9a-zA-Z_.-]/), 
                photo: (/\.jpg$|\.jpeg$|\.gif$/i),//图片格式 
                row: (/\n/ig) 
            }; 
            /**
            * @return 若符合对应的格式，返回true，否则返回false
            */ 
            function chkFormat(str, ftype) { 
                var nReg = Regexs[ftype]; 
                if (str == null || str == "") return false; //输入为空，认为是验证通过 
                if (ftype == 'num') { 
                    if (!nReg.test(str) && !chkChinese(str)) {//10.23 tenfy 必须为数字且不能有中文 
                        return true; 
                    } else { 
                        return false; 
                    } 
                } 
                if (!nReg.test(str)) { 
                    return true; 
                } else { 
                    return false; 
     
                } 
            }; 
            function chkChinese(s) { 
                for (var i = 0; i < s.length; i++) { 
                    if (s.charCodeAt(i) > 255) return true; 
                } 
                return false; 
            }; 
        </script> 



    <input value="" type="text" id="txt_val" /> 
        <br /> 
        <input value="验证" type="button" onclick="return chkFormat($('#txt_val').val(),'email')"/>