function prevArticle() {
  if (tickLocked == false) {
	  if (intTickPos == 0) {
	    intTickPos = arrNewsItems.length-1;
	  } else {
	    intTickPos--;
		}
		setArticle(intTickPos);
	}
}

function nextArticle() {
	if (tickLocked == false) {
		if (intTickPos == arrNewsItems.length - 1) {
			intTickPos = 0;
		} else {
			intTickPos++;
		}
		setArticle(intTickPos);
	}
}

function typeText() {
	if (intCurrentPos < currentText.length) {
		strText += currentText.charAt(intCurrentPos);
		setSpan(strText,currentLink);
		intCurrentPos++;		
	} else if (intCurrentPos == currentText.length) {
		strText += currentText.charAt(intCurrentPos);
		setSpan(strText,currentLink);
		clearInterval(typeInterval);
		hideCursor();
	} else if (intCurrentPos > currentText.length){
		setSpan(strText,currentLink);
		clearInterval(typeInterval);
		hideCursor();
	}
}

function setSpan(strText, strLink) {	
	$("#tickerLink").attr('target', '_top').attr('href', strLink).text(strText);
}

function setArticle(intPos) {
	if (arrNewsItems[intPos] != null) {
		tickLocked = true;
		intCurrentPos = 0;
		strText = '';
		setSpan('', '#');
		showCursor();
		currentText = arrNewsItems[intPos][0];
		currentLink = arrNewsItems[intPos][1];
		typeInterval = setInterval( "typeText()", intTypeSpeed);
		tickLocked = false;
  }
}

function playTicker() {
	isInFirstTimeout = false;
	if (autoTimerID != 0) {
		clearInterval(typeInterval);
		nextArticle();
	}
	autoTimerID = self.setTimeout("playTicker()", intTickSpeed);
}

function playFirstTicker() {
	if(isFirstPass == true) {
		hideCursor();
		setSpan(arrNewsItems[0][0],arrNewsItems[0][1]);
		isFirstPass = false;
		typeInterval = setInterval('',0);
		isInFirstTimeout = true;
		autoTimerID = self.setTimeout("playFirstTicker()", intTickSpeed);
	} else if (isFirstPass == false) {
		clearTimeout(autoTimerID);
		isInFirstTimeout = false;
		setArticle(intTickPos);
		playTicker();
	}
}

function stopTicker() {
	clearTimeout(autoTimerID);
}

function resumeTicker() {
	clearTimeout(autoTimerID);
	autoTimerID = self.setTimeout("playTicker()", intTickSpeed);
}

function delayTicker() {
	clearTimeout(autoTimerID);
	clearInterval(typeInterval);
	autoTimerID = self.setTimeout("playTicker()", intTickSpeed * 2);
}

function hideCursor() {
	$("#tickerCursor").hide();
}

function showCursor() {
	$("#tickerCursor").show();
}

$(document).ready( function() {
	$("#tickerPreviousButton").click(function() { delayTicker(); prevArticle(); });
	$("#tickerNextButton").click(function() { delayTicker(); nextArticle(); });
	$("#tickerLink").mouseover(stopTicker);
 	$("#tickerLink").mouseout(resumeTicker);
	playFirstTicker();
})