// Browser Slide-Show script. With image cross fade effect for those browsers
// that support it.
// Script copyright (C) 2004-2010 www.cryer.co.uk.
// Script is free to use provided this copyright header is included.

//Script for bliking text

var b_timer = null; // blink timer
var b_on = true; // blink state
var blnkrs = null; // array of spans

function blink() {
var tmp = document.getElementsByTagName("span");
if (tmp) {
blnkrs = new Array();
var b_count = 0;
for (var i = 0; i < tmp.length; ++i) {
if (tmp[i].className == "blink") {
blnkrs[b_count] = tmp[i];
++b_count;
}
}
// time in m.secs between blinks
// 500 = 1/2 second
blinkTimer(1000);
}
}

function blinkTimer(ival) {
if (b_timer) {
window.clearTimeout(b_timer);
b_timer = null;
}
blinkIt();
b_timer = window.setTimeout('blinkTimer(' + ival + ')', ival);
}

function blinkIt() {
for (var i = 0; i < blnkrs.length; ++i) {
if (b_on == true) {
blnkrs[i].style.visibility = "hidden";
}
else {
blnkrs[i].style.visibility = "visible";
}
}
b_on =!b_on;
}
////End Script for bliking text


//image slide show begins
var FadeDurationMS=1000;
function SetOpacity(object,opacityPct)
{
	// IE.
	object.style.filter = 'alpha(opacity=' + opacityPct + ')';
	// Old mozilla and firefox
	object.style.MozOpacity = opacityPct/100;
	// Everything else.
	object.style.opacity = opacityPct/100;
}
function ChangeOpacity(id,msDuration,msStart,fromO,toO)
{
	var element=document.getElementById(id);
	var msNow = (new Date()).getTime();
	var opacity = fromO + (toO - fromO) * (msNow - msStart) / msDuration;
	if (opacity>=100)
	{
		SetOpacity(element,100);
		element.timer = undefined;
	}
	else if (opacity<=0)
	{
		SetOpacity(element,0);
		element.timer = undefined;
	}
	else 
	{
		SetOpacity(element,opacity);
		element.timer = window.setTimeout("ChangeOpacity('" + id + "'," + msDuration + "," + msStart + "," + fromO + "," + toO + ")",10);
	}
}
function FadeInImage(foregroundID,newImage,backgroundID)
{
	var foreground=document.getElementById(foregroundID);
	if (foreground.timer) window.clearTimeout(foreground.timer);

	if (backgroundID)
	{
		var background=document.getElementById(backgroundID);
		if (background)
		{
			if (background.src)
			{
				foreground.src = background.src;	
				SetOpacity(foreground,100);
			}
			background.src = newImage;
			background.style.backgroundImage = 'url(' + newImage + ')';
			background.style.backgroundRepeat = 'no-repeat';
			var startMS = (new Date()).getTime();
			foreground.timer = window.setTimeout("ChangeOpacity('" + foregroundID + "'," + FadeDurationMS + "," + startMS + ",100,0)",10);
		}
	} else {
		foreground.src = newImage;
	}
}
var slideCache = new Array();
function RunSlideShow(pictureID,backgroundID,imageFiles,displaySecs)
{
	var imageSeparator = imageFiles.indexOf(";");
	var nextImage = imageFiles.substring(0,imageSeparator);
	if (slideCache[nextImage] && slideCache[nextImage].loaded)
	{
		FadeInImage(pictureID,nextImage,backgroundID);
		var futureImages = imageFiles.substring(imageSeparator+1,imageFiles.length)
			+ ';' + nextImage;
		setTimeout("RunSlideShow('"+pictureID+"','"+backgroundID+"','"+futureImages+"',"+displaySecs+")",
			displaySecs*1000);
		// Identify the next image to cache.
		imageSeparator = futureImages.indexOf(";");
		nextImage = futureImages.substring(0,imageSeparator);
	} else {
		setTimeout("RunSlideShow('"+pictureID+"','"+backgroundID+"','"+imageFiles+"',"+displaySecs+")",
			250);
	}
	// Cache the next image to improve performance.
	if (slideCache[nextImage] == null)
	{
		slideCache[nextImage] = new Image;
		slideCache[nextImage].loaded = false;
		slideCache[nextImage].onload = function(){this.loaded=true};
		slideCache[nextImage].src = nextImage;
	}
}
//image slide show ends