var interval = 6; // interval in seconds
//var fadeSpeed = 40; // fade speed, the lower the speed the faster the fade.  40 is normal.
var list; // global list variable cache
var tickerObj; // global tickerObj cache
var hex = 255

var opacity = 1;
var fadeSpeed = 100;

function changeOpacity(objDiv,bFade)
{
	var bContinue = false;
	var object = document.getElementById(objDiv).style;
	
	if (bFade)
	{
		if (opacity > 0)
			bContinue = true;
		else
			object.visibility = 'hidden';
			
		opacity -=10;
	}
	else
	{
		if (opacity < 100)
			bContinue = true;
			
		opacity +=10;
	}
		

	if (bContinue)
	{
		object.opacity = (opacity / 100);
		object.MozOpacity = (opacity / 100); 
		object.KhtmlOpacity = (opacity / 100);
		object.filter = "progid:DXImageTransform.Microsoft.alpha(opacity=" + opacity + ")"; 	
		object.visibility = 'visible';
		setTimeout("changeOpacity('" + objDiv + "',"+ bFade +")", fadeSpeed); 
	}
}

function fadeText(divId)
{
	if(tickerObj)
	{
		if(hex>0)
		{
			hex-=5; // increase color darkness
			tickerObj.style.color="rgb("+hex+","+hex+","+hex+")";
			setTimeout("fadeText('" + divId + "')", fadeSpeed); 
		}
		else
			hex=255; //reset hex value
	}
}

function initialiseList(divId)
{
	tickerObj = document.getElementById(divId);
	if(!tickerObj)
		reportError("Could not find a div element with id \"" + divId + "\"");
	
	list = tickerObj.childNodes;
	if(list.length <= 0)
		reportError("The div element \"" + divId + "\" does not have any children");
		
	for (var i=0; i<list.length; i++)
	{
		var node = list[i];
		if (node.nodeType == 3 && !/\S/.test(node.nodeValue)) 
	        		tickerObj.removeChild(node);

	}
	run(divId, 0);
}
function run(divId, count)
{
	//fadeText(divId);
	
	opacity = 1;
	changeOpacity(divId,false)
	
	list[count].style.display = "block";
	if(count > 0)
		list[count-1].style.display = "none";
	else
		list[list.length-1].style.display = "none";
	
	count++;
	if(count == list.length)
		count = 0;
		
	window.setTimeout("run('" + divId + "', " + count+ ")", interval*1000);
}
function reportError(error)
{
	alert("The script could not run because you have errors:\n\n" + error);
	return false;
}