正则表达式方式的验证方式，这个验证比较标准而且比较全面，不过也是通过点击提交按钮才进行验证，本实例可以这样验证，具体内容如下
也可以这样验证
具体代码
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>表单验证类Validator v1</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> </head> <body> <table> <form method="get" onSubmit="return Validator.Validate(this,2)"> <tr> <td>身份证号：</td> <td><input dataType="IdCard" msg="身份证号错误"></td> </tr> <tr> <td>真实姓名：</td> <td><input dataType="Chinese" msg="真实姓名只允许中文"></td> </tr> <tr> <td>ID：</td> <td><input dataType="Username" msg="ID名不符合规定"></td> </tr> <tr> <td>英文名：</td> <td><input dataType="English" require="false" msg="英文名只允许英文字母"></td> </tr> <tr> <td>主页：</td> <td><input require="false" dataType="Url" msg="非法的Url"></td> </tr> <tr> <td>密码：</td> <td><input dataType="SafeString" msg="密码不符合安全规则" type="password"></td> </tr> <tr> <td>重复：</td> <td><input 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 dataType="Email" msg="信箱格式不正确"></td> </tr> <tr> <td>信箱：</td> <td><input dataType="Repeat" to="Email" msg="两次输入的信箱不一致"></td> </tr> <tr> <td>QQ：</td> <td><input require="false" dataType="QQ" msg="QQ号码不存在"></td> </tr> <tr> <td>身份证：</td> <td><input dataType="IdCard" msg="身份证号码不正确"></td> </tr> <tr> <td>年龄：</td> <td><input 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 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 require="false" dataType="Phone" msg="电话号码不正确"></td> </tr> <tr> <td>手机：</td> <td><input require="false" dataType="Mobile" msg="手机号码不正确"></td> </tr> <tr> <td>生日：</td> <td><input dataType="Date" format="ymd" msg="生日日期不存在"></td> </tr> <tr> <td>邮政编码：</td> <td><input dataType="Custom" regexp="^[1-9]\d{5}$" msg="邮政编码不存在"></td> </tr> <tr> <td>邮政编码：</td> <td><input dataType="Zip" msg="邮政编码不存在"></td> </tr> <tr> <td>操作系统：</td> <td><select dataType="Require" msg="未选择所用操作系统" > <option value="">选择您所用的操作系统</option> <option value="Win98">Win98</option> <option value="Win2k">Win2k</option> <option value="WinXP">WinXP</option> </select></td> </tr> <tr> <td>所在省份：</td> <td>广东 <input value="1" type="radio"> 陕西 <input value="2" type="radio"> 浙江 <input value="3" type="radio"> 江西 <input value="4" type="radio" dataType="Group" msg="必须选定一个省份" ></td> </tr> <tr> <td>爱好：</td> <td>运动 <input value="1" type="checkbox"> 上网 <input value="2" type="checkbox"> 听音乐 <input value="3" type="checkbox"> 看书 <input value="4" type="checkbox"" dataType="Group" min="2" max="3" msg="必须选择2~3种爱好"></td> </tr> <td>自我介绍：</td> <td><textarea dataType="Limit" max="10" msg="自我介绍内容必须在10个字之内">中文是一个字</textarea></td> </tr> <td>自传：</td> <td><textarea dataType="LimitB" min="3" max="10" msg="自传内容必须在[3,10]个字节之内">中文是两个字节t</textarea></td> </tr> <tr> <td>相片上传：</td> <td><input dataType="Filter" msg="非法的文件格式" type="file" accept="jpg, gif, png"></td> </tr> <tr> <td colspan="2"><input type="submit" value="确定提交"> <input value="检验模式1" type="button"> <input value="检验模式2" type="button"> <input value="检验模式3" type="button"></td> </tr> </form> </table> <script> Validator = { Require : /.+/, Email : /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/, Phone : /^((\d2,3)|(\d{3}\-))?(0\d2,3|0\d{2,3}-)?[1-9]\d{6,7}(\-\d{1,4})?$/, Mobile : /^((\d2,3)|(\d{3}\-))?13\d{9}$/, 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){ modemode = 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){ minmin = min || 0; maxmax = 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; minmin = min || 1; maxmax = 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])))$/i); if(re == null) return false; if(re[1] >= area.length || area[re[1]] == "") return false; if(re[2].length == 12){ Ai = number.substr(0, 17); date = [re[9], re[10], re[11]].join("-"); } else{ Ai = number.substr(0, 6) + "19" + number.substr(6); date = ["19" + re[4], re[5], re[6]].join("-"); } if(!this.IsDate(date, "ymd")) return false; var sum = 0; for(var i = 0;i<=16;i++){ sum += Ai.charAt(i) * Wi[i]; } Ai += verify.charAt(sum%11); return (number.length ==15 || number.length == 18 && number == Ai); }, IsDate : function(op, formatString){ formatStringformatString = formatString || "ymd"; var m, year, month, day; switch(formatString){ case "ymd" : m = op.match(new RegExp("^((\\d{4})|(\\d{2}))([-./])(\\d{1,2})\\4(\\d{1,2})$")); if(m == null ) return false; day = m[6]; mmonth = 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]; mmonth = m[3]*1; year = (m[5].length == 4) ? m[5] : GetFullYear(parseInt(m[6], 10)); break; default : break; } if(!parseInt(month)) return false; monthmonth = 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> </body> </html>