一个计时器， 点击按钮 让他 停一会， 5s后继续自动运行

<div id="time" style="border:solid 1px #ddd; display:inline-block; width:50px; height:30px; vertical-align:middle"></div>
<input type="button" id="btn" value="停止">


<script type="text/javascript">
 // 一个计时器， 点击按钮 让他 停一会， 5s后继续自动运行
 var num=0;
 var data=1000;
 var timeout=false;
 
 function autoSide(){
    num +=1;
    $("#time").html(num);
}
var t=setInterval(autoSide,data);

$("#btn").click(function(){
    t= clearInterval(t);
    var timeout = setTimeout(function(){
         t= setInterval(autoSide,data);
    },5000);    
})
 


</script>

<div id="time" style="border:solid 1px #ddd; display:inline-block; width:50px; height:30px; vertical-align:middle"></div>
<input type="button" id="btn" value="停止">

<script type="text/javascript">

 var num=0;
 var data=1000;
 var timeout=false;
 
 function oNum(){
     num++;
         $("#time").html(num);
     }
 
 function autoSide() {
     if (timeout) {
         setTimeout(autoSide, 5000);
         timeout = 0;
     } else {
         setTimeout(autoSide, 1000);
         oNum();
     }

}
 
$("#btn").click(function () {
    timeout = 1;    
})

autoSide();

</script>