See the demo site
Responsive images slideshow with captions and links
syntax 1:
{up slide_showbillboard=path subfolder}
syntax 2:
{up slide_showbillboard}
<img src="images/img.jpg" alt="caption"> // image with caption in alt
<a href="#"><img src="img.jpg"></a> // image with link
{/up slideshow_billboard}
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Style CSS
Javascript parameters for configuration