动态移除元素属性

<select name="hour" style="width: 5%" id="hour"  onclick="hourShow()" onchange="show();">
    <option>{$scheduleItem['hour']}</option>
</select>


<script>
function hourShow(){
    var hours = '';
    for(var i=0;i<=23;i++){
        hours+="<option value='"+i+"'>"+i+"</option>";
    }
   $("#hour").html(hours);
    $("#hour").removeAttr('onclick');
}
</script>