js/jquery回车提交

    document.onkeydown=function(event){ 

        e = event ? event :(window.event ? window.event : null); 

        if(e.keycode==13){ 

            //执行的方法  

            alert('回车检测到了'); 

        } 

    } 

</script> 

<script>

 document.onkeydown=function(event){

  e = event ? event :(window.event ? window.event : null);

  if(e.keycode==13){

   //执行的方法

   alert('回车检测到了');

  }

 }

</script>

[javascript] <script> 

    $(document).ready(function(){ 

        $("按下回车的控件").keydown(function(e){ 

            var curkey = e.which; 

            if(curkey == 13){ 

                $("#回车事件按钮控件").click(); 

                return false; 

            } 

        }); 

    });