js计算年龄

    <script >
    $(function(){
        getAge($("#age"));
    });
    function getAge(target){
        var aDate=new   Date();   
        var thisYear=aDate.getFullYear();
        birth=target.attr("value").substr(0,4);
        age=thisYear-birth;
        target.html(age);
    }
    </script>

计算年龄

<div class="ui-form-item">
<label for="" class="ui-label">年龄:</label>
<p class="ui-form-text" id="age" value="${cy.birthday}"></p>
</div>