javascript - horizontal scrollbar on top and bottom of table

Question

I've a very large table on my page. So I decided to put a horizontal scrollbar on the bottom of the table. But I would like this scrollbar to be also on top on the table.

What I have in the template is this:

<div style="overflow:auto; width:100%; height:130%">
<table id="data" style="width:100%">...</table>
</div>

Is this possible to do in HTML and CSS only?

Answer 1

To simulate a second horizontal scrollbar on top of an element, put a "dummy" div above the element that has horizontal scrolling, just high enough for a scrollbar. Then attach handlers of the "scroll" event for the dummy element and the real element, to get the other element in synch when either scrollbar is moved. The dummy element will look like a second horizontal scrollbar above the real element.

For a live example, see this fiddle

Here's the code:

HTML:

<div class="wrapper1">
  <div class="div1"></div>
</div>
<div class="wrapper2">
  <div class="div2">
    <!-- Content Here -->
  </div>
</div>

CSS:

.wrapper1, .wrapper2 {
  width: 300px;
  overflow-x: scroll;
  overflow-y:hidden;
}

.wrapper1 {height: 20px; }
.wrapper2 {height: 200px; }

.div1 {
  width:1000px;
  height: 20px;
}

.div2 {
  width:1000px;
  height: 200px;
  background-color: #88FF88;
  overflow: auto;
}

JS:

$(function(){
  $(".wrapper1").scroll(function(){
    $(".wrapper2").scrollLeft($(".wrapper1").scrollLeft());
  });
  $(".wrapper2").scroll(function(){
    $(".wrapper1").scrollLeft($(".wrapper2").scrollLeft());
  });
});