function nieuwsOnLoad(){
	getHeadlines();
}

function getHeadlines(){
	var loader = new net.ContentLoader('sdp/nieuws.php', updateHeadlines);
}

function updateHeadlines(){
	var nieuwsItems = this.req.responseXML.getElementsByTagName('item');
	var headLinesContainer = document.getElementById('headlines');

	for(var i = 0; i < nieuwsItems.length; i++){
		var headline = document.createElement('a');
		var lineBreak = document.createElement('br');
		var headlineTeaser = document.createElement('div');
		
		headlineTeaser.innerHTML = nieuwsItems[i].getElementsByTagName('teaser')[0].firstChild.nodeValue;
		headlineTeaser.setAttribute('class','headline_teaser');
		headlineTeaser.setAttribute('id','headline_teaser_' + nieuwsItems[i].getAttribute('id'));
		headlineTeaser.style.display = 'none';

		headline.innerHTML = nieuwsItems[i].getElementsByTagName('title')[0].firstChild.nodeValue;
		headline.setAttribute('href','#');
		headline.style.display = 'block';
		//headline.onmouseover = toggleHeadlineTeaser;
		//headline.onmouseout = toggleHeadlineTeaser;
	
		headLinesContainer.appendChild(headline);
		headLinesContainer.appendChild(headlineTeaser);
		//headLinesContainer.appendChild(lineBreak);
	}
}

function toggleHeadlineTeaser(){
	var teaser = getNextSibling(this);
	
	if(teaser.style.display == 'none'){
		teaser.style.display = 'block';
		this.style.backgroundColor = '#006699';
		this.style.color = '#FFFFFF';
	}else{
		teaser.style.display = 'none';
		this.style.backgroundColor = '#FFFFFF';
		this.style.color = '#006699';
	}
	
	teaser.style.backgroundColor = '#DDDDDD';
	teaser.style.padding = 5 + 'px';
	teaser.style.borderWidth = 1 + 'px';
	teaser.style.borderColor = 'black';
	teaser.style.borderStyle = 'solid';
}