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();
	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=60)';	
			activeImage.style.opacity = 0.6;
		}	
		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 - 37;
		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();
	}
	
	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() { hideWaitMessageAndShowCaption(imageIndex-1); };
		//img.src = imagePath;
		obj = document.getElementById("imagenDetalle");
		ocultar(obj,100,imagePath,imageIndex);
		valorAlta  = imagePath;
		/*if (imagePath.indexOf("_d.jpg") != -1){
			valorAlta = imagePath.replace("_d.jpg", "_a.jpg");
		}
		if (imagePath.indexOf("_d.gif") != -1){
			valorAlta = imagePath.replace("_d.gif", "_a.gif");
		}
		document.getElementById('ampliar').href=valorAlta;*/
	}
	function hideWaitMessageAndShowCaption(imageIndex,obj)
	{
		document.getElementById('waitMessage').style.display='none';
		//document.getElementById('largeImageCaption').innerHTML = imageGalleryCaptions[imageIndex];
		//document.getElementById('largeImageCaption').style.display='block';
		mostrar(obj,0);
	}
	
function ocultar(obj,cont,imagen,imageIndex){
	laimagen = imagen;
	aux = cont - 5;
	if (aux > 1){
		if (obj.style.MozOpacity){
			if (aux < 10){
				obj.style.MozOpacity = eval("0.0" + parseInt(aux))
			}else{
				obj.style.MozOpacity = eval("0." + parseInt(aux))
			}
		}else{
			obj.filters.alpha.opacity = parseInt(aux)
		}
		miTimerOcultar = setTimeout("ocultar(obj,aux,laimagen)",1)
	}else{
		
		if (obj.style.MozOpacity){
			obj.style.MozOpacity = 0
		}else{
			obj.filters.alpha.opacity = parseInt(aux)
		}
		if(displayWaitMessage){
			document.getElementById('waitMessage').style.display='inline';
		}
		obj.onload = function() { hideWaitMessageAndShowCaption(imageIndex-1,obj); };
		obj.src = laimagen;
		//mostrar(obj,0);		
	}
}
function mostrar(obj,cont){
	aux = cont + 2
	if (aux < 99){
		if (obj.style.MozOpacity){
			if (aux < 10){
					obj.style.MozOpacity = eval("0.0" + parseInt(aux))
			}else{

				obj.style.MozOpacity = eval("0." + parseInt(aux))
			}
		}else{
				obj.filters.alpha.opacity = parseInt(aux)
		}
		miTimerMostrar =setTimeout("mostrar(obj,aux)",3)
	}else{
		if (obj.style.MozOpacity){
			obj.style.MozOpacity = 100
		}else{
			obj.filters.alpha.opacity = parseInt(aux)
		}
		clearTimeout(miTimerMostrar);
		clearTimeout(miTimerOcultar);
	}
}

	
	window.onload = initSlideShow;