함수 값에따라 select - option 변경

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 <head>
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  <meta name="Generator" content="EditPlus®">
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  <title>Document</title>
  <script src="https://code.jquery.com/jquery-2.2.1.js"></script>
 </head>
 <body>
 <script>
  function check_date(now,j){
  if(j=='1'){
      $("#select").html("<option>옵션1</option><option>옵션2</option>");
  }else{
    $("#select").html("<option>옵션1</option><option>옵션2</option><option>옵션3</option>");
 }
}
</script>
<input type='button' onclick="check_date('now',1)" value=1>
<input type='button' onclick="check_date('now',2)" value=2>

<select id='select'>
</select>
 </body>
</html>