/***********************************************************************************************
	
	Copyright (c) 2005 - Alf Magne Kalleland post@dhtmlgoodies.com
	
	UPDATE LOG:
	
	March, 10th, 2006 : Added support for a message while large image is loading
	
	Get this and other scripts at www.dhtmlgoodies.com
	
	You can use this script freely as long as this copyright message is kept intact.
	
	***********************************************************************************************/ 
   	
	var displayWaitMessage=false;	// Display a please wait message while images are loading?
  	
   		
	var activeImage = false;
	var imageGalleryLeftPos = false;
	var imageGalleryWidth = false;
	var imageGalleryObj = false;
	var maxGalleryXPos = false;
	var slideSpeed = 0;
	var imageGalleryCaptions = new Array();
	var gimageIndex = 1; //Added by Neerja Pophli

	function initSlideShow(ssImage)
	{
		//document.getElementById('arrow_left').onmousemove = startSlide;
		//document.getElementById('arrow_left').onmouseout = releaseSlide;
		//document.getElementById('arrow_right').onmousemove = startSlide;
		//document.getElementById('arrow_right').onmouseout = releaseSlide;

		gimageIndex = parseInt(ssImage) + 1;
		imageGalleryObj = document.getElementById('theImages');
		imageGalleryLeftPos = imageGalleryObj.offsetLeft;
		imageGalleryWidth = document.getElementById('galleryContainer').offsetWidth - 80;
		maxGalleryXPos = imageGalleryObj.offsetLeft; 
		minGalleryXPos = imageGalleryWidth - document.getElementById('slideEnd').offsetLeft;
//		var slideshowImages = imageGalleryObj.getElementsByTagName('IMG');
////		for(var no=0;no<slideshowImages.length;no++){
////			slideshowImages[no].onmouseover = showImage;
////		}
		var divs = imageGalleryObj.getElementsByTagName('DIV');
		for(var no=0;no<divs.length;no++){
			if(divs[no].className=='imageCaption')imageGalleryCaptions[imageGalleryCaptions.length] = divs[no].innerHTML;
		}
		showPreview('images/homepagemovie/image' + gimageIndex + '_big.jpg',gimageIndex);
		//gallerySlide();
	}
	
	function showPreview(imagePath,imageIndex){
		gimageIndex = parseInt(imageIndex);
		//var subImages = document.getElementById('previewPane').getElementsByTagName('IMG');
		var subImages = document.getElementById('slideshowimage').getElementsByTagName('IMG');
		if(subImages.length==0){
			var img = document.createElement('IMG');
			//document.getElementById('previewPane').appendChild(img);
			document.getElementById('slideshowimage').appendChild(img);
		}else img = subImages[0];
		
		if(displayWaitMessage){
			document.getElementById('waitMessage').style.display='inline';
		}
		document.getElementById('largeImageCaption').style.display='none';
		img.onload = function() { hideWaitMessageAndShowCaption(imageIndex-1); };
		img.src = imagePath;
		//Added by Neerja Pophli
		imageGalleryObj = document.getElementById('theImages');
		var slideshowImages = imageGalleryObj.getElementsByTagName('IMG');
		for(var no=0;no<slideshowImages.length;no++){
			if(no == parseInt(imageIndex)-1)
			{
				slideshowImages[no].src = 'images/homepagemovie/image' + parseInt(imageIndex) + '.jpg';
			}
			else
			{
			slideshowImages[no].src = 'images/homepagemovie/image' + parseInt(no+1) + '_grey.jpg';
			}
		}
		//End Add
	}
	//Function Added by Neerja Pophli
	function showPreviewRight(){
		if(gimageIndex == 6) {
			gimageIndex = 1;
		}
		else
		{gimageIndex = gimageIndex + 1;}
		//alert(gimageIndex);
		//var subImages = document.getElementById('previewPane').getElementsByTagName('IMG');
		var subImages = document.getElementById('slideshowimage').getElementsByTagName('IMG');
		if(subImages.length==0){
			var img = document.createElement('IMG');
			//document.getElementById('previewPane').appendChild(img);
			document.getElementById('slideshowimage').appendChild(img);
		}else img = subImages[0];
		
		if(displayWaitMessage){
			document.getElementById('waitMessage').style.display='inline';
		}
		document.getElementById('largeImageCaption').style.display='none';
		img.onload = function() { hideWaitMessageAndShowCaption(gimageIndex-1); };
		img.src = 'images/homepagemovie/image' + gimageIndex + '_big.jpg';
		//alert(img.src);
		imageGalleryObj = document.getElementById('theImages');
		var slideshowImages = imageGalleryObj.getElementsByTagName('IMG');
		for(var no=0;no<slideshowImages.length;no++){
			if(no == parseInt(gimageIndex)-1)
			{
				slideshowImages[no].src = 'images/homepagemovie/image' + parseInt(gimageIndex) + '.jpg';
			}
			else
			{
			slideshowImages[no].src = 'images/homepagemovie/image' + parseInt(no+1) + '_grey.jpg';
			}
		}
	}
	//End Add
	//Function Added by Neerja Pophli
	function showPreviewLeft(){
		if(gimageIndex == 1) {
		gimageIndex = 6;
		}
		else
		{gimageIndex = gimageIndex - 1;}
		//alert(gimageIndex);
		//var subImages = document.getElementById('previewPane').getElementsByTagName('IMG');
		var subImages = document.getElementById('slideshowimage').getElementsByTagName('IMG');
		if(subImages.length==0){
			var img = document.createElement('IMG');
			//document.getElementById('previewPane').appendChild(img);
			document.getElementById('slideshowimage').appendChild(img);
		}else img = subImages[0];
		
		if(displayWaitMessage){
			document.getElementById('waitMessage').style.display='inline';
		}
		document.getElementById('largeImageCaption').style.display='none';
		img.onload = function() { hideWaitMessageAndShowCaption(gimageIndex-1); };
		img.src = 'images/homepagemovie/image' + gimageIndex + '_big.jpg';
		imageGalleryObj = document.getElementById('theImages');
		var slideshowImages = imageGalleryObj.getElementsByTagName('IMG');
		for(var no=0;no<slideshowImages.length;no++){
			if(no == parseInt(gimageIndex)-1)
			{
				slideshowImages[no].src = 'images/homepagemovie/image' + parseInt(gimageIndex) + '.jpg';
			}
			else
			{
			slideshowImages[no].src = 'images/homepagemovie/image' + parseInt(no+1) + '_grey.jpg';
			}
		}
	}
	function hideWaitMessageAndShowCaption(imageIndex)
	{
		document.getElementById('waitMessage').style.display='none';	
		document.getElementById('largeImageCaption').innerHTML = imageGalleryCaptions[imageIndex];
		document.getElementById('largeImageCaption').style.display='block';
		
	}
	window.onload = initSlideShow;
	
		//function startSlide(e)
//	{
//		if(document.all)e = event;
//		var id = this.id;
//		this.getElementsByTagName('IMG')[0].src = 'images/' + this.id + '_over.gif';	
//		if(this.id=='arrow_right'){
//			slideSpeedMultiply = Math.floor((e.clientX - this.offsetLeft) / 5);
//			slideSpeed = -1*slideSpeedMultiply;
//			slideSpeed = Math.max(-10,slideSpeed);
//		}else{			
//			slideSpeedMultiply = 10 - Math.floor((e.clientX - this.offsetLeft) / 5);
//			slideSpeed = 1*slideSpeedMultiply;
//			slideSpeed = Math.min(10,slideSpeed);
//			if(slideSpeed<0)slideSpeed=10;
//		}
//	}
	
	//function releaseSlide()
//	{
//		var id = this.id;
//		this.getElementsByTagName('IMG')[0].src = 'images/' + this.id + '.gif';
//		slideSpeed=0;
//	}
		
	//function gallerySlide()
//	{
//		if(slideSpeed!=0){
//			var leftPos = imageGalleryObj.offsetLeft;
//			leftPos = leftPos/1 + slideSpeed;
//			if(leftPos>maxGalleryXPos){
//				leftPos = maxGalleryXPos;
//				slideSpeed = 0;
//				
//			}
//			if(leftPos<minGalleryXPos){
//				leftPos = minGalleryXPos;
//				slideSpeed=0;
//			}
//			
//			imageGalleryObj.style.left = leftPos + 'px';
//		}
//		setTimeout('gallerySlide()',20);
//		
//	}
	
//	function showImage()
//	{
//		if(activeImage){
//			activeImage.style.filter = 'alpha(opacity=50)';	
//			activeImage.style.opacity = 0.5;
//			//this.src = 'images/image' + gimageIndex + '_big.jpg';
//		}	
//		this.style.filter = 'alpha(opacity=100)';
//		this.style.opacity = 1;	
//		activeImage = this;	
//	}