/***********************************************************************************************
	
	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 imageGalleryTitles = 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=50)';	
			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 - 50;
		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;
			if(divs[no].className=='imageTitle')imageGalleryTitles[imageGalleryTitles.length] = divs[no].innerHTML;
		}
		gallerySlide();
	}
	
	*/
	function getXmlHttpRequestObject() {
     
     if (window.XMLHttpRequest) 
     {
          return new XMLHttpRequest();
     } else if(window.ActiveXObject) {
          return new ActiveXObject("Microsoft.XMLHTTP");
     } else {
          alert("Your browser does not support AJAX!");
     }
}

     var getComment = getXmlHttpRequestObject();
     var getFileTitle =getXmlHttpRequestObject();
     
	//function showPreview(imagePath,imageIndex,useMap,photoid){
	
    function showPreview(imagePath,imageIndex,photoid,albumcommentstatus){

		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';
		document.getElementById('largeImageTitle').innerHTML = "";
		img.onload = function() { hideWaitMessageAndShowCaption(imageIndex-1); };
		img.src = imagePath;
		
		
		
		//img.setAttribute("useMap", useMap); 
		if(albumcommentstatus =="Y"	)
		{    
		    document.getElementById('hiddenphotoid').value=	photoid;
		}
		    // GET Comment
		    var url = "../includes/getComment.asp?photoid="+photoid+"&albumid="+document.getElementById('H_AlbumID').value;
	        getComment.open("GET",url,true);
	        getComment.onreadystatechange = getComments; 
	        getComment.send(null);

		
		    //GET PHOTO NAME  + DESC
		    var urlTitle = "../includes/getFileTitle.asp?photoid="+photoid+"&albumid="+document.getElementById('H_AlbumID').value;
	        getFileTitle.open("GET",urlTitle,true);
	        getFileTitle.onreadystatechange = getFile; 
	        getFileTitle.send(null);


		//parent.photocommentlist.location.href=parent.photocommentlist.location.href;
		//photocommentlist.document.commentlisting.selphotoid.value=photoid;
		//var bottomURL = "../includes/photocommentlist.asp?id=" + photoid;
       // photocommentlist.location.href = bottomURL;
		
	}
	
	
	function getFile()
	{
	    if ((getFileTitle.readyState == 4)) 
	    {
                        
          var ab = getFileTitle.responseText;
          var abSplit =ab.split("-");
          var ab1 =abSplit[0];
          var ab2 =abSplit[1];
            
            if (ab1 != "")
            {
                document.getElementById('largeImageTitle').innerHTML =ab1;
            }
            else
            {
                document.getElementById('largeImageTitle').innerHTML ="--";
            }
            
            if(ab2 !="")
            {
                 document.getElementById('largeImageCaption').innerHTML =ab2;
            }
            else
            {
                document.getElementById('largeImageCaption').innerHTML ="--";
            }
       
        }
	}
	
	
	function getComments()
	{
	    if ((getComment.readyState == 4)) {
                        
          if(getComment.responseText !="0")
          {
            document.getElementById('commentlisting').innerHTML=getComment.responseText;
          }
          else
          {
            document.getElementById('commentlisting').innerHTML="<div class='menuText'>* No comment for this photo.</div>";
          }
                            
        }
	}
	
	
	function hideWaitMessageAndShowCaption(imageIndex)
	{
		document.getElementById('waitMessage').style.display='none';
		document.getElementById('largeImageCaption').style.display='block';	
		//document.getElementById('largeImageTitle').innerHTML = imageGalleryTitles[imageIndex];
		//document.getElementById('largeImageCaption').innerHTML = imageGalleryCaptions[imageIndex];
	}
	
	//window.onload = initSlideShow;