$(document).ready(function() {

	// image pop ups
	$(".enlarge").fancybox({
		'titleShow'		: false,
		'transitionIn'	: 'fade',
		'transitionOut'	: 'fade'
	});


	// nav button hover behavior
	$("#nav span").hover(
	  function () {
	    $(this).addClass("active");
	  },
	  function () {
	    $(this).removeClass("active");
	  }
	);

	// preload image function
	var cache = [];

	 $.preLoadImages = function() {
	   var args_len = arguments.length;
	   for (var i = args_len; i--;) {
	     var cacheImage = document.createElement('img');
	     cacheImage.src = arguments[i];
	     cache.push(cacheImage);
	   }
	 }
	
	// load nav hover images
	$.preLoadImages("images/nav-community-trans-on.png", "images/nav-about-trans-on.png", "images/nav-projects-trans-on.png");


});