<form class="form-horizontal" name="mobileform" style="padding:10px;" onSubmit="return checkMobile();">
<div class="span12"> <span class="pull-left title-ipone">手机号:</span> <input class="span10 pull-right" name="mobile" type="number" placeholder="请输入手机号"/> </div> <div class="text-center span12 ml0"> <button type="submit" class="btn btn-warning" style="margin-top:20px;">查 询</button> </div> </form>javascript 代码: function checkMobile(){ var sMobile = document.mobileform.mobile.value if(sMobile==''){ alert('请输入手机号'); }else if(!(/^1[3|5][0-9]\d{ 4,8}$/.test(sMobile))){ alert("请输入正确的手机号码"); document.mobileform.mobile.focus(); return false; } }