url 处理

function checkPhoneNumber(){
    var phonenumber=$("#phonenumber").val();
    $.ajax({
        type: "POST",
        url: "${pageContext.request.contextPath}/RegisterServlet?handle=check&time=" + new Date().getTime(),
        data: {phonenumber:phonenumber},
        success: function(msg){
            var biao = $("#biao_phonenumber");
            //手机号已被使用返回1，否则返回 0；
            if(phonenumber==""){
                biao.html("<img src="../images/icons/cancel.png">手机号不能为空，请输入手机号</img>");
            }else if("1"==msg){
                biao.html("<img src="../images/icons/cancel.png">该手机号已被注册</img>");
           }else if(!phonenumber==""){
               phonenumberOk = true;
               biao.html("<img src="../images/icons/accept.png"></img>");
           };
        }
    });
    return  phonenumberOk;
}