/***********************************************************************************************
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();

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 = 3;
		slideSpeed = -1*slideSpeedMultiply;
		slideSpeed = Math.max(-10,slideSpeed);
	}else{
					
		slideSpeedMultiply = 3;
		slideSpeed = 1*slideSpeedMultiply;
		slideSpeed = Math.min(10,slideSpeed);
		if(slideSpeed<0)slideSpeed=10;
	}
}

function releaseSlide(){
	var id = this.id;
	slideSpeed=0;
	if(this.id=='arrow_right'){
		slideSpeedMultiply = 1;
		slideSpeed = -1*slideSpeedMultiply;
		slideSpeed = Math.max(-1,slideSpeed);		
	}
	else
	{
		slideSpeedMultiply = 1;
		slideSpeed = 1*slideSpeedMultiply;
		slideSpeed = Math.max(1,slideSpeed);				
	}
}
	
function gallerySlide(){
	if(slideSpeed!=0){
		var leftPos = imageGalleryObj.offsetLeft;
		leftPos = leftPos/1 + slideSpeed;
		if(leftPos>maxGalleryXPos){
			slideSpeedMultiply = 1;
			slideSpeed = -1*slideSpeedMultiply;
			slideSpeed = Math.max(-1,slideSpeed);				
			//leftPos = maxGalleryXPos;
			//slideSpeed = 0;
		}
		if(leftPos<minGalleryXPos){
			slideSpeedMultiply = 1;
			slideSpeed = 1*slideSpeedMultiply;
			slideSpeed = Math.max(1,slideSpeed);
			//leftPos = minGalleryXPos;
			//slideSpeed=0;
		}
		
		imageGalleryObj.style.left = leftPos + 'px';
	}
	setTimeout('gallerySlide()',20);
}

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;
	//}

	slideSpeedMultiply = 1;
	slideSpeed = -1*slideSpeedMultiply;
	slideSpeed = Math.max(-10,slideSpeed);
	gallerySlide();
}

function showPreview(imagePath,imageIndex,note){
	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];
	
	if(displayWaitMessage){
		document.getElementById('waitMessage').style.display='inline';
	}
	document.getElementById('largeImageCaption').style.display='none';
	img.onload = function() { hideWaitMessageAndShowCaption(imageIndex-1); };
	img.src = imagePath;
	
	document.getElementById('idMedia').value=imageIndex;
	
	if (note) {
		if (note<=0.5) document.getElementById('smiley').src="/charte/smileys/smiley3.gif";
		else {
			if (note<=1) document.getElementById('smiley').src="/charte/smileys/smiley2.gif";
			else document.getElementById('smiley').src="/charte/smileys/smiley1.gif";
		}
	}	
	
}


function hideWaitMessageAndShowCaption(imageIndex){
	document.getElementById('waitMessage').style.display='none';	
	document.getElementById('largeImageCaption').innerHTML = imageGalleryCaptions[imageIndex];
	document.getElementById('largeImageCaption').style.display='block';
}

//window.onload = initSlideShow;