$('#slider1').bxSlider({
  mode: 'fade',
  auto: true,
  autoControls: true,
  pause: 2000
});

$('#slider2').bxSlider({
  auto: true,
  autoControls: true,
  pause: 3000,
  slideMargin: 20
});

<style>
  ul {
    padding: 0;
    margin: 0;
  }
</style>

<h3>Slideshow 1</h3>
<ul id="slider1">
  <li><img src="http://placehold.it/900x200&text=Slide 1a" /></li>
  <li><img src="http://placehold.it/900x200&text=Slide 2a" /></li>
  <li><img src="http://placehold.it/900x200&text=Slide 3a" /></li>
</ul>

<h3>Slideshow 2</h3>
<ul id="slider2">
  <li><img src="http://placehold.it/900x200&text=Slide 1b" /></li>
  <li><img src="http://placehold.it/900x200&text=Slide 2b" /></li>
  <li><img src="http://placehold.it/900x200&text=Slide 3b" /></li>
</ul>