/************************************************************************************************************
	(C) www.dhtmlgoodies.com, January 2006
	
	This is a script from www.dhtmlgoodies.com. You will find this and a lot of other scripts at our website.	
	
	Version:	1.0	: January 16th - 2006
	
	Terms of use:
	You are free to use this script as long as the copyright message is kept intact. However, you may not
	redistribute, sell or repost it without our permission.
	
	Thank you!
	
	www.dhtmlgoodies.com
	Alf Magne Kalleland
	
	************************************************************************************************************/		
	var rssBoxTxt_readMore = 'Čtěte více';
	var rssBoxOpenLinksInNewWindow = false;
	var rssBoxPadding = 2;
	var rssBox_slideSpeed = 6;	// 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,url,maxItems,secondBetweenSlides)
	{
		var ajaxIndex = rssBoxAjaxObjects.length;
		rssBoxAjaxObjects[ajaxIndex] = new sack();
		rssBoxAjaxObjects[ajaxIndex].requestFile = 'readRSS.php?rssURL=' + url + '&maxRssItems=' + maxItems;	// 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('rssBox','http://www.vykladkaretonline.cz/rss.xml',10,12);
		
	}
	
	
	window.onload = initRssBoxScript;