var tmRotate = false;
var rotationIndex = 0;
var arrPreload = [
	'/images/welcome/home.jpg',
	'/images/welcome/home_getsupport.png',
	'/images/welcome/home_getsupport_h.png',
	'/images/welcome/business.jpg',
	'/images/welcome/apps.jpg',
	'/images/welcome/apps_browse.png',
	'/images/welcome/apps_browse_h.png'
];

function pageLinkClick(p_objLink) {
	$('.home-main-left-nav a').removeClass('active');
	$(p_objLink).addClass('active');
	var objTargetPage = $('.home-main-left-page-' + p_objLink.rel);
	$('.home-main-left-pages > div').not(objTargetPage).fadeOut();
	objTargetPage.fadeIn();
}

$(function() {
	$('.home-main-left-nav a').click(function() {
		pageLinkClick(this);
		if (tmRotate) {
			clearInterval(tmRotate);
			tmRotate = false;
		}
		return false;
	});
	tmRotate = setInterval(function() {
		var arrPages = $('.home-main-left-nav a');
		rotationIndex++;
		if (rotationIndex >= arrPages.length)
			rotationIndex = 0;
		pageLinkClick(arrPages[rotationIndex]);
	}, 8000);
});

$(window).load(function() {
	var objPreload = document.createElement('div');
	$(objPreload).appendTo(document.body).hide();
	for (var intIndex = 0; intIndex < arrPreload.length; intIndex++) {
		var objImage = document.createElement('img');
		objImage.src = arrPreload[intIndex];
		$(objPreload).append(objImage);
	}
});