js檢查手機號格式

function test(){
         var reg = /^1[0-9]{10}$/;
         if(!reg.test($("#myphone input").val().trim())){
             alert('您輸入的手機號碼格式不正確，請重新輸入');
             return false;
         }else {
             return true;
         }
     }

<div class="regList"  id="myphone">
    <label><span class="red">*</span> 手機號碼</label>
    <input type="text" required="required" name="utel" oninput="value=value.replace(/[^\d]/g,'')" maxlength=11/>
   </div>

<input type="image" onclick='return test()' src="images/reg.jpg" width="284" height="34" />