/*  
+-----------------------------------------------------------------------+
|	     			MANUTEA	  				|
|			     Open Source 			        |
+-----------------------------------------------------------------------+
| Copyright (c) 2007 Poe.net developer                                  |
+-----------------------------------------------------------------------+
*/
   	
	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;
		
		if(this.id=='button_bottom')
		{
			slideSpeed = -5;
		}
		else
		{			
			slideSpeed = 10;
		}
	}
	
	
	
	function releaseSlide()
	{
		var id = this.id;
		slideSpeed=0;
	}
		
	function gallerySlide()
	{
		if(slideSpeed!=0)
		{
			var leftPos = imageGalleryObj.offsetTop;
			leftPos = leftPos/1 + slideSpeed;
			
			if(leftPos>maxGalleryXPos)
			{
				leftPos = maxGalleryXPos;
				slideSpeed = 0;				
			}
			
			if(leftPos<minGalleryXPos)
			{
				leftPos = minGalleryXPos;
				slideSpeed=0;
			}
			
			imageGalleryObj.style.top = leftPos + 'px';
		}
		setTimeout('gallerySlide()',20);		
	}
	
	
	
	function showImage()
	{
		if(activeImage)
		{
			activeImage.style.filter = 'alpha(opacity=90)';	
			activeImage.style.opacity = 0.9;
		}	
		
		this.style.filter = 'alpha(opacity=100)';
		this.style.opacity = 1;	
		activeImage = this;	
	}
	
	function initSlideShow()
	{
		document.getElementById('button_top').onmousemove = startSlide;
		document.getElementById('button_top').onmouseout = releaseSlide;
		document.getElementById('button_bottom').onmousemove = startSlide;
		document.getElementById('button_bottom').onmouseout = releaseSlide;
		
		imageGalleryObj = document.getElementById('text_content');
		imageGalleryLeftPos = imageGalleryObj.offsetTop;
		imageGalleryWidth = document.getElementById('slide_text').offsetHeight - 80;
		maxGalleryXPos = imageGalleryObj.offsetTop; 
		minGalleryXPos = imageGalleryWidth - document.getElementById('slide_end').offsetTop;
		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();
	}