// cufon 
Cufon.replace("h1", { fontFamily: 'Coolvetica Rg'});
Cufon.replace("h2", { fontFamily: 'Coolvetica Rg'});
Cufon.replace("h4", { fontFamily: 'Coolvetica Rg'});


$(function() {
	$(".nav-services > a").click(function() {
		return false;
	});
});

function slideShow() {
	// HOME PAGE SLIDESHOW CODE //
	// set first slide as selected
	$(".slideshow ul.slides li:first").addClass("selected");
	$(".slideshow ul.nav li:first").addClass("selected");
		
		
	// AUTO CHANGE SLIDE
	var t;
	var timer_is_on = 0;
	var getTimer;
	var isFirstTime = true;
	
	// starts the auto changer
	doTimer();
	
	function autoChangeSlide() {
		if (!isFirstTime) {
			var slideLength = $(".slideshow ul.slides li").length;
	
			// determine the index of the selected slide
			$(".slideshow ul.slides li").each(function(index) {
				if ($(this).hasClass("selected")) {
					thisSlide = index;
				}
			});
			
			if (thisSlide + 1 > slideLength - 1)
				goToSlide(0);
			else
				goToSlide(thisSlide + 1);
		}
		
		isFirstTime = false;
			
		t = setTimeout(function() {
			autoChangeSlide();
		}, 5000);
	}

	// starts the javascript timer
	function doTimer() {
		if (!timer_is_on) {
			timer_is_on = 1;
			autoChangeSlide();
		}
	}

	// stops the javascript timer
	function stopCount() {
		clearTimeout(t);
		timer_is_on = 0;
	}

	
	// EVENT HANDLERS	
	// slide nav click
	$(".slideshow ul.nav li a").click(function() {
		stopCount(); //stop auto change slides
		$(".slideshow ul").stop(true, true);
		var slideIndex = $(this).parent("li").index();
		goToSlide(slideIndex);
		return false;
	});
					

	// HELPER FUNCTIONS
	// function to go to a specific slide index
	function goToSlide(index) {
		var thisSlide = 0;
		
		// determine the index of the selected slide
		$(".slideshow ul.slides li").each(function(index) {
			if ($(this).hasClass("selected")) {
				thisSlide = index;
			}
		});
		
		// remove selected class from current slide.
		$(".slideshow ul.slides li").eq(thisSlide).removeClass("selected");
		$(".slideshow ul.nav li").eq(thisSlide).removeClass("selected");
		
		// add selected class to next slide.
		$(".slideshow ul.slides li").eq(index).addClass("selected");
		$(".slideshow ul.nav li").eq(index).addClass("selected");
		
		//alert("index: " + index + "\nthisSlide: " + thisSlide);
		var moveDistance = index * -350;				
		$(".slideshow ul").animate({top: moveDistance}, 400);
		
		slideAnimations(index);
	}
	
	function slideAnimations(index) {
		switch(index) {
			case 0:
				$(".home .slideshow .overlay").stop(true, true).fadeOut(50);
				break;
			case 1:
				$(".home .slideshow .overlay").stop(true, true).fadeOut(50);
				$(".home .slideshow .overlay.cooling-ac").delay(400).fadeIn(200);
				$(".home .slideshow .overlay.cooling-ac img").delay(400).fadeTo(150, 0.5).fadeTo(150, 1);
				break;
			case 2:
				$(".home .slideshow .overlay").stop(true, true).fadeOut(50);
				$(".home .slideshow .overlay.heating-furnace").delay(400).fadeIn(200);
				$(".home .slideshow .overlay.heating-furnace img").delay(400).fadeTo(150, 0.5).fadeTo(150, 1);
				break;
			case 3:
				$(".home .slideshow .overlay").stop(true, true).fadeOut(50);
				$(".home .slideshow .overlay.ventilation-ventilator").delay(400).fadeIn(200);
				$(".home .slideshow .overlay.ventilation-ventilator img").delay(400).fadeTo(150, 0.5).fadeTo(150, 1);
				break;
			default:
				// do nothing
		}
	}
}