一个不错的js验证框架

<title>表单验证类 Validator v1.05</title>
<style>
 body,td{font:normal 12px Verdana;color:#333333}
 input,textarea,select,td{font:normal 12px Verdana;color:#333333;border:1px solid #999999;background:#ffffff}
 table{border-collapse:collapse;}
 td{padding:3px}
 input{height:20;}
 textarea{width:80%;height:50px;overflow:auto;}
 form{display:inline}
 </style>
<form name="theForm" id="demo" method="get"
 onSubmit="return Validator.Validate(this,2)">
 <table align="center">

  <tr>
   <td>
    身份证号：
   </td>
   <td>
    <input name="Card" dataType="IdCard" msg="身份证号错误">
   </td>
  </tr>
  <tr>
   <td>
    真实姓名：
   </td>
   <td>
    <input name="Name" dataType="Chinese" msg="真实姓名只允许中文">
   </td>
  </tr>
  <tr>
   <td>
    ID：
   </td>
   <td>
    <input name="username" dataType="Username" msg="ID名不符合规定">
   </td>
  </tr>
  <tr>
   <td>
    英文名：
   </td>
   <td>
    <input name="Nick" dataType="English" require="false"
     msg="英文名只允许英文字母">
   </td>
  </tr>
  <tr>
   <td>
    主页：
   </td>
   <td>
    <input name="Homepage" require="false" dataType="Url" msg="非法的Url">
   </td>
  </tr>
  <tr>
   <td>
    密码：
   </td>
   <td>
    <input name="Password" dataType="SafeString" msg="密码不符合安全规则"
     type="password">
   </td>
  </tr>
  <tr>
   <td>
    重复：
   </td>
   <td>
    <input name="Repeat" dataType="Repeat" to="Password"
     msg="两次输入的密码不一致" type="password">
   </td>
  </tr>
  <tr>
   <td>
    信箱：
   </td>
   <td>
    <input name="Email" dataType="Email" msg="信箱格式不正确">
   </td>
  </tr>
  <tr>
   <td>
    信箱：
   </td>
   <td>
    <input name="Email" dataType="Repeat" to="Email" msg="两次输入的信箱不一致">
   </td>
  </tr>
  <tr>
   <td>
    QQ：
   </td>
   <td>
    <input name="QQ" require="false" dataType="QQ" msg="QQ号码不存在">
   </td>
  </tr>
  <tr>
   <td>
    身份证：
   </td>
   <td>
    <input name="Card" dataType="IdCard" msg="身份证号码不正确">
   </td>
  </tr>
  <tr>
   <td>
    年龄：
   </td>
   <td>
    <input name="Year" dataType="Range" msg="年龄必须在18~28之间" min="18"
     max="28">
   </td>
  </tr>
  <tr>
   <td>
    年龄1：
   </td>
   <td>
    <input name="Year1" require="false" dataType="Compare"
     msg="年龄必须在18以上" to="18" operator="GreaterThanEqual">
   </td>
  </tr>
  <tr>
   <td>
    电话：
   </td>
   <td>
    <input name="Phone" require="false" dataType="Phone" msg="电话号码不正确">
   </td>
  </tr>
  <tr>
   <td>
    手机：
   </td>
   <td>
    <input name="Mobile" require="false" dataType="Mobile" msg="手机号码不正确">
   </td>
  </tr>
  <tr>
   <td>
    生日：
   </td>
   <td>
    <input name="Birthday" dataType="Date" format="ymd" msg="生日日期不存在">
   </td>
  </tr>
  <tr>
   <td>
    邮政编码：
   </td>
   <td>
    <input name="Zip" dataType="Custom" regexp="^[1-9]/d{5}$"
     msg="邮政编码不存在">
   </td>
  </tr>
  <tr>
   <td>
    邮政编码：
   </td>
   <td>
    <input name="Zip1" dataType="Zip" msg="邮政编码不存在">
   </td>
  </tr>
  <tr>
   <td>
    操作系统：
   </td>
   <td>
    <select name="Operation" dataType="Require" msg="未选择所用操作系统">
     <option value="">
      选择您所用的操作系统
     </option>
     <option value="Win98">
      Win98
     </option>
     <option value="Win2k">
      Win2k
     </option>
     <option value="WinXP">
      WinXP
     </option>
    </select>
   </td>
  </tr>
  <tr>
   <td>
    所在省份：
   </td>
   <td>
    广东
    <input name="Province" value="1" type="radio">
    陕西
    <input name="Province" value="2" type="radio">
    浙江
    <input name="Province" value="3" type="radio">
    江西
    <input name="Province" value="4" type="radio" dataType="Group"
     msg="必须选定一个省份">
   </td>
  </tr>
  <tr>
   <td>
    爱好：
   </td>
   <td>
    运动
    <input name="Favorite" value="1" type="checkbox">
    上网
    <input name="Favorite" value="2" type="checkbox">
    听音乐
    <input name="Favorite" value="3" type="checkbox">
    看书
    <input name="Favorite" value="4" type="checkbox" " dataType="Group"
     min="2" max="3" msg="必须选择2~3种爱好">
   </td>
  </tr>
  <tr>
   <td>
    自我介绍：
   </td>
   <td>
    <textarea name="Description" dataType="Limit" max="10"
     msg="自我介绍内容必须在10个字之内">中文是一个字</textarea>
   </td>
  </tr>
  <tr>
   <td>
    自传：
   </td>
   <td>
    <textarea name="History" dataType="LimitB" min="3" max="10"
     msg="自传内容必须在[3,10]个字节之内">中文是两个字节t</textarea>
   </td>
  </tr>
  <tr>
   <td>
    相片上传：
   </td>
   <td>
    <input name="up" dataType="Filter" msg="非法的文件格式" type="file"
     accept="jpg, gif, png">
   </td>
  </tr>
  <tr>
   <td colspan="2">
    <input name="Submit" type="submit" value="确定提交">
    <input onClick="Validator.Validate(document.getElementById('demo'))"
     value="检验模式1" type="button">
    <input
     onClick="Validator.Validate(document.getElementById('demo'),2)"
     value="检验模式2" type="button">
    <input
     onClick="Validator.Validate(document.getElementById('demo'),3)"
     value="检验模式3" type="button">
   </td>
  </tr>

 </table>
</form>
<script>
/*************************************************
    Validator v1.05
    code by 我佛山人
    wfsr@msn.com
*************************************************/
 Validator = {
    Require : /.+/,
    Email : /^/w+([-+.]/w+)*@/w+([-.]/w+)*/./w+([-.]/w+)*$/,
    Phone : /^((/(/d{2,3}/))|(/d{3}/-))?(/(0/d{2,3}/)|0/d{2,3}-)?[1-9]/d{6,7}(/-/d{1,4})?$/,
    Mobile : /^((/(/d{2,3}/))|(/d{3}/-))?13/d{9}$/,
    Url : /^http:////[A-Za-z0-9]+/.[A-Za-z0-9]+[//=/?%/-&_~`@[/]/':+!]*([^<>/"/"])*$/,
    IdCard : "this.IsIdCard(value)",
    Currency : /^/d+(/./d+)?$/,
    Number : /^/d+$/,
    Zip : /^[1-9]/d{5}$/,
    QQ : /^[1-9]/d{4,8}$/,
    Integer : /^[-/+]?/d+$/,
    Double : /^[-/+]?/d+(/./d+)?$/,
    English : /^[A-Za-z]+$/,
    Chinese :  /^[/u0391-/uFFE5]+$/,
    Username : /^[a-z]/w{3,}$/i,
    UnSafe : /^(([A-Z]*|[a-z]*|/d*|[-_/~!@#/$%/^&/*/./(/)/[/]/{/}<>/?/////'/"]*)|.{0,5})$|/s/,
    IsSafe : function(str){return !this.UnSafe.test(str);},
    SafeString : "this.IsSafe(value)",
    Filter : "this.DoFilter(value, getAttribute('accept'))",
    Limit : "this.limit(value.length,getAttribute('min'),  getAttribute('max'))",
    LimitB : "this.limit(this.LenB(value), getAttribute('min'), getAttribute('max'))",
    Date : "this.IsDate(value, getAttribute('min'), getAttribute('format'))",
    Repeat : "value == document.getElementsByName(getAttribute('to'))[0].value",
    Range : "getAttribute('min') < (value|0) && (value|0) < getAttribute('max')",
    Compare : "this.compare(value,getAttribute('operator'),getAttribute('to'))",
    Custom : "this.Exec(value, getAttribute('regexp'))",
    Group : "this.MustChecked(getAttribute('name'), getAttribute('min'), getAttribute('max'))",
    ErrorItem : [document.forms[0]],
    ErrorMessage : ["以下原因导致提交失败：/t/t/t/t"],
    Validate : function(theForm, mode){
        var obj = theForm || event.srcElement;
        var count = obj.elements.length;
        this.ErrorMessage.length = 1;
        this.ErrorItem.length = 1;
        this.ErrorItem[0] = obj;
        for(var i=0;i<count;i++){
            with(obj.elements[i]){
                var _dataType = getAttribute("dataType");
                if(typeof(_dataType) == "object" || typeof(this[_dataType]) == "undefined")  continue;
                this.ClearState(obj.elements[i]);
                if(getAttribute("require") == "false" && value == "") continue;
                switch(_dataType){
                    case "IdCard" :
                    case "Date" :
                    case "Repeat" :
                    case "Range" :
                    case "Compare" :
                    case "Custom" :
                    case "Group" :
                    case "Limit" :
                    case "LimitB" :
                    case "SafeString" :
                    case "Filter" :
                        if(!eval(this[_dataType]))    {
                            this.AddError(i, getAttribute("msg"));
                        }
                        break;
                    default :
                        if(!this[_dataType].test(value)){
                            this.AddError(i, getAttribute("msg"));
                        }
                        break;
                }
            }
        }
        if(this.ErrorMessage.length > 1){
            mode = mode || 1;
            var errCount = this.ErrorItem.length;
            switch(mode){
            case 2 :
                for(var i=1;i<errCount;i++)
                    this.ErrorItem[i].style.color = "red";
            case 1 :
                alert(this.ErrorMessage.join("/n"));
                this.ErrorItem[1].focus();
                break;
            case 3 :
                for(var i=1;i<errCount;i++){
                try{
                    var span = document.createElement("SPAN");
                    span.id = "__ErrorMessagePanel";
                    span.style.color = "red";
                    this.ErrorItem[i].parentNode.appendChild(span);
                    span.innerHTML = this.ErrorMessage[i].replace(//d+:/,"*");
                    }
                    catch(e){alert(e.description);}
                }
                this.ErrorItem[1].focus();
                break;
            default :
                alert(this.ErrorMessage.join("/n"));
                break;
            }
            return false;
        }
        return true;
    },
    limit : function(len,min, max){
        min = min || 0;
        max = max || Number.MAX_VALUE;
        return min <= len && len <= max;
    },
    LenB : function(str){
        return str.replace(/[^/x00-/xff]/g,"**").length;
    },
    ClearState : function(elem){
        with(elem){
            if(style.color == "red")
                style.color = "";
            var lastNode = parentNode.childNodes[parentNode.childNodes.length-1];
            if(lastNode.id == "__ErrorMessagePanel")
                parentNode.removeChild(lastNode);
        }
    },
    AddError : function(index, str){
        this.ErrorItem[this.ErrorItem.length] = this.ErrorItem[0].elements[index];
        this.ErrorMessage[this.ErrorMessage.length] = this.ErrorMessage.length + ":" + str;
    },
    Exec : function(op, reg){
        return new RegExp(reg,"g").test(op);
    },
    compare : function(op1,operator,op2){
        switch (operator) {
            case "NotEqual":
                return (op1 != op2);
            case "GreaterThan":
                return (op1 > op2);
            case "GreaterThanEqual":
                return (op1 >= op2);
            case "LessThan":
                return (op1 < op2);
            case "LessThanEqual":
                return (op1 <= op2);
            default:
                return (op1 == op2);           
        }
    },
    MustChecked : function(name, min, max){
        var groups = document.getElementsByName(name);
        var hasChecked = 0;
        min = min || 1;
        max = max || groups.length;
        for(var i=groups.length-1;i>=0;i--)
            if(groups[i].checked) hasChecked++;
        return min <= hasChecked && hasChecked <= max;
    },
    DoFilter : function(input, filter){
return new RegExp("^.+/.(?=EXT)(EXT)$".replace(/EXT/g, filter.split(//s*,/s*/).join("|")), "gi").test(input);
    },
    IsIdCard : function(number){
        var date, Ai;
        var verify = "10x98765432";
        var Wi = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2];
        var area = ['','','','','','','','','','','','北京','天津','河北','山西','内蒙古','','','','','','辽宁','吉林','黑龙江','','','','','','','','上海','江苏','浙江','安微','福建','江西','山东','','','','河南','湖北','湖南','广东','广西','海南','','','','重庆','四川','贵州','云南','西藏','','','','','','','陕西','甘肃','青海','宁夏','新疆','','','','','','台湾','','','','','','','','','','香港','澳门','','','','','','','','','国外'];
        var re = number.match(/^(/d{2})/d{4}(((/d{2})(/d{2})(/d{2})(/d{3}))|((/d{4})(/d{2})(/d{2})(/d{3}[x/d])))$/i);
        if(re == null) return false;
        if(re[1] >= area.length || area[re[1]] == "") return false;
        if(re[2].length == 12){
            Ai = number.substr(0, 17);
            date = [re[9], re[10], re[11]].join("-");
        }
        else{
            Ai = number.substr(0, 6) + "19" + number.substr(6);
            date = ["19" + re[4], re[5], re[6]].join("-");
        }
        if(!this.IsDate(date, "ymd")) return false;
        var sum = 0;
        for(var i = 0;i<=16;i++){
            sum += Ai.charAt(i) * Wi[i];
        }
        Ai +=  verify.charAt(sum%11);
        return (number.length ==15 || number.length == 18 && number == Ai);
    },
    IsDate : function(op, formatString){
        formatString = formatString || "ymd";
        var m, year, month, day;
        switch(formatString){
            case "ymd" :
                m = op.match(new RegExp("^((//d{4})|(//d{2}))([-./])(//d{1,2})//4(//d{1,2})$"));
                if(m == null ) return false;
                day = m[6];
                month = m[5]*1;
                year =  (m[2].length == 4) ? m[2] : GetFullYear(parseInt(m[3], 10));
                break;
            case "dmy" :
                m = op.match(new RegExp("^(//d{1,2})([-./])(//d{1,2})//2((//d{4})|(//d{2}))$"));
                if(m == null ) return false;
                day = m[1];
                month = m[3]*1;
                year = (m[5].length == 4) ? m[5] : GetFullYear(parseInt(m[6], 10));
                break;
            default :
                break;
        }
        if(!parseInt(month)) return false;
        month = month==0 ?12:month;
        var date = new Date(year, month-1, day);
        return (typeof(date) == "object" && year == date.getFullYear() && month == (date.getMonth()+1) && day == date.getDate());
        function GetFullYear(y){return ((y<30 ? "20" : "19") + y)|0;}
    }
 }
</script>