var rssBoxTxt_readMore = 'Lees verder';
var rssBoxOpenLinksInNewWindow = false;
var rssBoxPadding = 2;
var rssBox_slideSpeed = 7;	// Higher = faster slide
var rssBox_waitBetweenEachSlideStep = 5;	// Lower = faster
	
var rssBoxAjaxObjects = new Array();
var currentZIndex = 0;
var slideCounter = 0;

function changeSlide(boxId,secondBetweenSlides,slideIndex){
	var el = document.getElementById(boxId);
	var divs = el.getElementsByTagName('DIV');
		
	divs[slideIndex].style.left = divs[slideIndex].parentNode.offsetWidth + 'px';
	divs[slideIndex].style.display='block';
	divs[slideIndex].style.zIndex = currentZIndex;
	currentZIndex++;
		
	slideRssBox(boxId,slideIndex,secondBetweenSlides,divs[slideIndex].id);
}
	
function slideRssBox(boxId,slideIndex,secondBetweenSlides,slideId){
	var obj = document.getElementById(slideId)
	var left = obj.style.left.replace('px','')/1;
	left = left - rssBox_slideSpeed;
	if(left<rssBoxPadding)left=rssBoxPadding;
	obj.style.left = left + 'px';
	if(left>rssBoxPadding){
		setTimeout('slideRssBox("' + boxId + '",' + slideIndex + ',' + secondBetweenSlides + ',"' + slideId + '")',rssBox_waitBetweenEachSlideStep);
	}else{
		slideIndex++;
		var el = document.getElementById(boxId)
		var divs = el.getElementsByTagName('DIV');
		if(slideIndex>=divs.length)slideIndex = 0;
		setTimeout('changeSlide("' + boxId + '",' + secondBetweenSlides + ',' + slideIndex + ')',secondBetweenSlides*1000);	
	}
}
	
function openUrlInNewWindow(){
	var rssBoxWin = window.open(this.href);
	return false;
}

function showAjaxContent(ajaxIndex,boxId,secondBetweenSlides){
	var rssContent = rssBoxAjaxObjects[ajaxIndex].response;
	tokens = rssContent.split(/\n\n/g);
	var destinationObj = document.getElementById(boxId);
	destinationObj.innerHTML = '';
	var headerTokens = tokens[0].split(/\n/g);
	if(headerTokens[0]=='0'){
		headerTokens[1] = '';
		headerTokens[0] = 'Invalid source';
	}
	for(var no=1;no<tokens.length;no++){	// Looping through RSS items
		var string = '';
		var itemTokens = tokens[no].split(/##/g);		
		var div = document.createElement('DIV');
		div.style.position = 'absolute';
		div.style.top = '0px';
		div.className='slide';
			
		div.id = 'rssSlide' + slideCounter;
		slideCounter ++;
		if(no>1)div.style.display='none';	
		destinationObj.appendChild(div);
		div.style.width = (div.parentNode.clientWidth - (rssBoxPadding*2)) + 'px';
		div.style.height = (div.parentNode.offsetHeight + 10) + 'px';
			
		// Adding date
		var date = document.createElement('P');
		date.className='rssBoxDate';
		date.innerHTML = itemTokens[1];
		div.appendChild(date);
			
		// Adding heading
		var heading = document.createElement('P');
		heading.className = 'rssBoxHeading';
		heading.innerHTML = itemTokens[0];
		div.appendChild(heading);
			
		// Adding description
		var description = document.createElement('P');
		description.className='rssBoxDescription';
		description.innerHTML = itemTokens[2];
		div.appendChild(description);
			
		// Adding link
		var link = document.createElement('A');
		link.className = 'rssBoxLink';
		link.innerHTML = rssBoxTxt_readMore;
		link.href = itemTokens[3];
		if(rssBoxOpenLinksInNewWindow){
			link.onclick = openUrlInNewWindow;
		}
		div.appendChild(link);
	}
	setTimeout('changeSlide("' + boxId + '",' + secondBetweenSlides + ',1)',secondBetweenSlides*1000);
}
	
function insertAjaxContent(destinationId,maxItems,secondBetweenSlides){
	var ajaxIndex = rssBoxAjaxObjects.length;
	rssBoxAjaxObjects[ajaxIndex] = new sack();
	rssBoxAjaxObjects[ajaxIndex].requestFile = 'http://www.chaosgennep.nl/ajax/ajax.php';	// Specifying which file to get
	rssBoxAjaxObjects[ajaxIndex].onCompletion = function(){ showAjaxContent(ajaxIndex,destinationId,secondBetweenSlides); };	// Specify function that will be executed after file has been found
	rssBoxAjaxObjects[ajaxIndex].runAJAX();		// Execute AJAX function	
}
	
function initRssBoxScript(){
	insertAjaxContent('newsbox',5,4);
}

window.onload = initRssBoxScript;