$(document).ready(function()
{
my_lightbox();
});

function my_lightbox(){
	var $targets = $(' a[href$=jpg], a[href$=png], a[href$=gif], a[href$=jpeg], a[rel=lightbox], a[rel=prettyphoto]').contents("img").parent();
		$targets.prettyPhoto({theme: 'light_rounded' /* light_rounded / dark_rounded / light_square / dark_square */	}); 
}