/* 
 * Dynamic content for canadianchemistry.ca
 * Author: Brandon Posner
 * Date: August 13, 2010
 * Website: www.positanic.com
 */


/*************************************
 * Parameters for news feed rotation 
 ************************************/
var holdTime = 4; //seconds
var slideTime = 1; //seconds
/************************************/


$(function(){
	setupMenu();
	setupTabs();
	startNewsAnimation();
});

function setupMenu() {
	$('.menuBar li').hover(
		function(){$(this).addClass('hover');},
		function(){$(this).removeClass('hover');}
	);
}

function setupTabs() {
	$('.tabs img').hover(
		function(){$(this).addClass('hover');},
		function(){$(this).removeClass('hover');}
	);
}

function startNewsAnimation() {
	setTimeout("animateNews()", holdTime*1000);
}

function animateNews() {
	var size = $('#news li:first').outerHeight(true);
	$('#news ul').animate({scrollTop: size}, slideTime*1000, rotateNews);
}

function rotateNews() {
	var list = $('#news ul');
	var n = $('#news li:first');
	n.remove().appendTo(list).show();
	list.scrollTop(0);
	startNewsAnimation();
}