/***********************************************************************************************
	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=true;	// 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 displayWaitMessage2=true;	// Display a please wait message while images are loading?
	var activeImage2 = false;
	var imageGalleryLeftPos2 = false;
	var imageGalleryWidth2 = false;
	var imageGalleryObj2 = false;
	var maxGalleryXPos2 = false;
	var slideSpeed2 = 0;
	var imageGalleryCaptions2 = new Array();
	
	function startSlide(e)
	{
		if(document.all)e = event;
		var id = this.id;
		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;
		slideSpeed=0;
	}
	
	function startSlide2(e)
	{
		if(document.all)e = event;
		var id = this.id;
		if(this.id=='arrow_right2'){
			slideSpeedMultiply2 = Math.floor((e.clientX - this.offsetLeft) / 5);
			slideSpeed2 = -1*slideSpeedMultiply2;
			slideSpeed2 = Math.max(-10,slideSpeed2);
		}else{			
			slideSpeedMultiply2 = 10 - Math.floor((e.clientX - this.offsetLeft) / 5);
			slideSpeed2 = 1*slideSpeedMultiply2;
			slideSpeed2 = Math.min(10,slideSpeed2);
			if(slideSpeed2<0)slideSpeed2=10;
		}
	}
	
	function releaseSlide2()
	{
		var id2 = this.id;
		slideSpeed2=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 gallerySlide2()
	{
		if(slideSpeed2!=0){
			var leftPos2 = imageGalleryObj2.offsetLeft;
			leftPos2 = leftPos2/1 + slideSpeed2;
			if(leftPos2>maxGalleryXPos2){
				leftPos2 = maxGalleryXPos2;
				slideSpeed2 = 0;
				
			}
			if(leftPos2<minGalleryXPos2){
				leftPos2 = minGalleryXPos2;
				slideSpeed2=0;
			}
			
			imageGalleryObj2.style.left = leftPos2 + 'px';
		}
		setTimeout('gallerySlide2()',20);
		
	}
	
	function showImage()
	{
		if(activeImage){
			activeImage.style.filter = 'alpha(opacity=70)';	
			activeImage.style.opacity = 0.5;
		}	
		this.style.filter = 'alpha(opacity=100)';
		this.style.opacity = 1;	
		activeImage = this;	
	}
	
	function initSlideShow()
	{
		document.getElementById('arrow_left').onmousemove = startSlide;
		document.getElementById('arrow_left').onmouseout = releaseSlide;
		document.getElementById('arrow_right').onmousemove = startSlide;
		document.getElementById('arrow_right').onmouseout = releaseSlide;
		
		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;
		}
		gallerySlide();
		
		document.getElementById('arrow_left2').onmousemove = startSlide2;
		document.getElementById('arrow_left2').onmouseout = releaseSlide2;
		document.getElementById('arrow_right2').onmousemove = startSlide2;
		document.getElementById('arrow_right2').onmouseout = releaseSlide2;
		
		imageGalleryObj2 = document.getElementById('theImages2');
		imageGalleryLeftPos2 = imageGalleryObj2.offsetLeft;
		imageGalleryWidth2 = document.getElementById('galleryContainer2').offsetWidth - 80;
		maxGalleryXPos2 = imageGalleryObj2.offsetLeft; 
		minGalleryXPos2 = imageGalleryWidth2 - document.getElementById('slideEnd2').offsetLeft;
		var slideshowImages2 = imageGalleryObj2.getElementsByTagName('IMG');
		for(var no=0;no<slideshowImages2.length;no++){
			slideshowImages2[no].onmouseover = showImage;
		}
		
		var divs2 = imageGalleryObj2.getElementsByTagName('DIV');
		for(var no=0;no<divs2.length;no++){
			if(divs2[no].className=='imageCaption2')imageGalleryCaptions2[imageGalleryCaptions2.length] = divs2[no].innerHTML;
		}
		gallerySlide2();
	}

	function showPreview(imagePath,imageIndex)
	{
		var subImages = document.getElementById('previewPane').getElementsByTagName('IMG');
		if(subImages.length==0){
			var img = document.createElement('IMG');
			document.getElementById('previewPane').appendChild(img);
		}else img = subImages[0];
		
		
		document.getElementById('largeImageCaption').style.display='none';
		img.onload = function() {  };
		img.src = imagePath;
	}

	function showVideo(videoPath, videoIndex)
	{
		var subImages = document.getElementById('previewPane').getElementsByTagName('A');
		if(subImages.length==0){
			var img = document.createElement('A');
			document.getElementById('previewPane').appendChild(img);
		}else img = subImages[0];

		document.getElementById('largeImageCaption').style.display='none';
		img.onload = function() {  };
		img.href = videoPath;
	}

	window.onload = initSlideShow;