按Enter键执行表单验证

document.onkeydown = function(evt){
　 var evt = window.event?window.event:evt;
　if (evt.keyCode==13) {
    $('#login-submit').click();
　}
}
$(function(){
    $('#login-submit').click(function(){
        var pass = $('#login-pass').val();
        $.post("{php echo $this->createMobileUrl('checklogin',array('rid'=>$rid))}", { pass:pass},
              function(data){
                if(data == 1){
                    $('#login-form').addClass("has-success");
                    window.location="{php echo $this->createMobileUrl('index',array('rid'=>$rid))}";
                    }else{
                        $('#login-form').addClass("has-error");
                        $('#login-form').transition('shake');
                        }
              });
        });
});