Array.prototype.count = function() { return this.length; }; 

function changeNews(nextPrev)
{
	var newsTagID = $('newsImage').alt;

	for(var currentNews = 0; currentNews < newsList.count(); currentNews++)
	{
		var newsID = currentNews;
		if(newsID == newsTagID)
		{
		  var currentNews = currentNews;
		  break;
		}
	}

	if(nextPrev == "next")
	{
		currentNews++;
	}
	else if(nextPrev == "prev")
	{
		currentNews = currentNews-1;
	}

	if(currentNews == (newsList.count() - 1))
	{
		$('newsArrowRight').src = baseHref+'images/layup/imageArrowRightDisable.gif';
		$('newsArrowRight').onclick = '';
	}else
	{
		$('newsArrowRight').src = baseHref+'images/layup/imageArrowRightActive.gif';
		$('newsArrowRight').onclick = function(){changeNews("next");}
	}

	if(currentNews == 0)
	{
		$('newsArrowLeft').src = baseHref+'images/layup/imageArrowLeftDisable.gif';
		$('newsArrowLeft').onclick = '';
	}else
	{
		$('newsArrowLeft').src = baseHref+'images/layup/imageArrowLeftActive.gif';
		$('newsArrowLeft').onclick = function(){changeNews("prev");}
	} 
	$('newsImage').alt = newsList[currentNews]['count'];
	$('newsImage').src = newsList[currentNews]['thumbSrc'];
	$('newsHeadline').innerHTML = newsList[currentNews]['heading'];
	$('newsLink').href = newsList[currentNews]['linkHeading'];
}

function quickSearch(name){
	$('quickSearch').value = name;
	$('quickSearchFake').click();
}

function clearQuickSearch(){
	if ( $('quickSearch').value == 'search'){
		$('quickSearch').value = '';
	}
}