正则 表单验证

电话号码验证  案例<fieldset>
            <legend>正则表单验证</legend>
            <form action method="post" target="_self" onsubmit="return checkform();">
                <input name id="telephone" type="text" msg>
                <input name type="submit" class="button" value="检查电话号码">
            </form>
        </fieldset>
        <script type="text/javascript">
            /* 正则检查表单案例 */
            function checkform(){
                $element = document.getElementById("telephone");
                $m = $element.value.match(/^((\(\d{2,3}\))|(\d{3}\-))?(\(0\d{2,3}\)|0\d{2,3}-)?[1-9]\d{6,7}(\-\d{1,4})?$/);
                if($m == null){
                    alert("电话号码不正确");return false;
                }
                else{
                    alert("恭喜！电话号码正确");return false;
                }
            }
        </script>

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 : /^((\(\d{3}\))|(\d{3}\-))?13[0-9]\d{8}?$|15[89]\d{8}?$/,

//url : /^http:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&_~`@[\]\‘:+!]*([^<>\"\"])*$/

idCard : "this.isIdCard(value)"

currency : /^\d+(\.\d+)?$/

number : /^\d+$/

zip : /^[1-9]\d{5}$/

ip : /^[\d\.]{7,15}$/

qq : /^[1-9]\d{4,8}$/

integer : /^[-\+]?\d+$/

double : /^[-\+]?\d+(\.\d+)?$/

english : /^[A-Za-z]+$/

chinese : /^[\u0391-\uFFE5]+$/

userName : /^[a-z_ ]\w{3,}$/i