// JavaScript Document

$(document).ready(function()
{
	$("#nav-bar-top img, #project-links img").each(function()
	{
		rollsrc = $(this).attr("src");
		rollON = rollsrc.replace(/.jpg$/ig,"_over.jpg");
		$("<img>").attr("src", rollON);
	});
	
	$("#nav-bar-top a, #project-links a").mouseover(function()
	{
		imgsrc = $(this).children("img").attr("src");
		matches = imgsrc.match(/_over/);
		if (!matches) {
			imgsrcON = imgsrc.replace(/.jpg$/ig,"_over.jpg"); // strip off extension
			$(this).children("img").attr("src", imgsrcON);
		}
	});
	
	$("#nav-bar-top a, #project-links a").mouseout(function()
	{
		$(this).children("img").attr("src", imgsrc);
	});
});

function slideSwitch()
{
	var $active = $('#slideshow IMG.active');

	if ( $active.length == 0 ) $active = $('#slideshow IMG:last');

	// use this to pull the images in the order they appear in the markup
	var $next =  $active.next().length ? $active.next()
		: $('#slideshow IMG:first');

	// uncomment the 3 lines below to pull the images in random order
	
	var $sibs  = $active.siblings();
	var rndNum = Math.floor(Math.random() * $sibs.length );
	var $next  = $( $sibs[ rndNum ] );

	$active.addClass('last-active');
	$next.css({opacity: 0.0})
		.addClass('active')
		.animate({opacity: 1.0}, 1500, function() {
			$active.removeClass('active last-active');
		});
}

$(function() {
	setInterval( "slideSwitch()", 4000 );
});

$(function() {
	$('#gallery a').lightBox();
});