var peNews;
var peArticles;
var news = new Array();
var articles = new Array();
var newsCount = 0;
var articlesCount = 0;

function showNews() {
    peNews.stop();
    new Effect.Fade('news', {afterFinish:showNewsFinish, transition: Effect.Transitions.linear});
}

function showNewsFinish() {

	newsCount++;
	if (newsCount >= news.length) {
		newsCount = 0;
	}

	$('news').innerHTML = '<strong>' + news[newsCount]['title'] + '</strong><br />' +
							news[newsCount]['teaser'] + '<br /><br />' +
							'<a href="/news">MORE &gt;</a>';
    new Effect.Appear('news', {afterFinish:startNewsTimer, transition: Effect.Transitions.linear});
}

function startNewsTimer() {
    peNews = new PeriodicalExecuter(showNews, 15);
}

function showArticles() {
    peArticles.stop();
    new Effect.Fade('articles', {afterFinish:showArticlesFinish, transition: Effect.Transitions.linear});
}

function showArticlesFinish() {

	articlesCount++;
	if (articlesCount >= articles.length) {
		articlesCount = 0;
	}

	$('articles').innerHTML = '<strong>' + articles[articlesCount]['title'] + '</strong><br />' +
							articles[articlesCount]['teaser'] + '<br /><br />' +
							'<a href="/testimonials">MORE &gt;</a>';
    new Effect.Appear('articles', {afterFinish:startArticlesTimer, transition: Effect.Transitions.linear});
}

function startArticlesTimer() {
    peArticles = new PeriodicalExecuter(showArticles, 15);
}

rollovers = new Array(6);
if (document.images) {
	rollovers[0] = new Array();
	rollovers[0].on = new Image;
	rollovers[0].on.src = '/images/menu_fire_on.gif';
	rollovers[0].off = new Image;
	rollovers[0].off.src = '/images/menu_fire_off.gif';
	rollovers[1] = new Array();
	rollovers[1].on = new Image;
	rollovers[1].on.src = '/images/menu_confinedspaces_on.gif';
	rollovers[1].off = new Image;
	rollovers[1].off.src = '/images/menu_confinedspaces_off.gif';
	rollovers[2] = new Array();
	rollovers[2].on = new Image;
	rollovers[2].on.src = '/images/menu_workingatheight_on.gif';
	rollovers[2].off = new Image;
	rollovers[2].off.src = '/images/menu_workingatheight_off.gif';
	rollovers[3] = new Array();
	rollovers[3].on = new Image;
	rollovers[3].on.src = '/images/menu_emergencyresponse_on.gif';
	rollovers[3].off = new Image;
	rollovers[3].off.src = '/images/menu_emergencyresponse_off.gif';
	rollovers[4] = new Array();
	rollovers[4].on = new Image;
	rollovers[4].on.src = '/images/menu_construction_on.gif';
	rollovers[4].off = new Image;
	rollovers[4].off.src = '/images/menu_construction_off.gif';
	rollovers[5] = new Array();
	rollovers[5].on = new Image;
	rollovers[5].on.src = '/images/menu_barespiratory_on.gif';
	rollovers[5].off = new Image;
	rollovers[5].off.src = '/images/menu_barespiratory_off.gif';
	rollovers[6] = new Array();
	rollovers[6].on = new Image;
	rollovers[6].on.src = '/images/menu_generalhealthsafety_on.gif';
	rollovers[6].off = new Image;
	rollovers[6].off.src = '/images/menu_generalhealthsafety_off.gif';
}