/***********************************************************************************************
	
	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()
	{
			slideSpeedMultiply = 10 - Math.floor((220 - 175) / 5);
			slideSpeed = -1*slideSpeedMultiply;
			slideSpeed = Math.max(-10,slideSpeed);
	}
	function startSlide2()
	{
			slideSpeedMultiply = 100 - Math.floor((30 - -1) / 50);
			slideSpeed = 1*slideSpeedMultiply;
			slideSpeed = Math.min(100,slideSpeed);
	}	
	
	function releaseSlide()
	{
		//alert(this.id)
		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;
				startSlide();
			}
			if(leftPos<minGalleryXPos){
				leftPos = minGalleryXPos;
				slideSpeed=0;
				startSlide2();
			}
			imageGalleryObj.style.left = leftPos + 'px';
			clearall();
			centralizeimage()
			if (leftPos <= centimg1 && leftPos >= centimg2){
				document.getElementById('imgs1').style.filter = 'alpha(opacity=100)';
				document.getElementById('imgs1').style.opacity = 1;
				document.getElementById('number1').style.backgroundColor='red';
				document.getElementById('number1').style.color='#ffffff';			
			}else if (leftPos <= centimg2 && leftPos >= centimg3){
				document.getElementById('imgs2').style.filter = 'alpha(opacity=100)';
				document.getElementById('imgs2').style.opacity = 1;
				document.getElementById('number2').style.backgroundColor='red';
				document.getElementById('number2').style.color='#ffffff';				
			}else if (leftPos <= centimg3 && leftPos >= centimg4){
				document.getElementById('imgs3').style.filter = 'alpha(opacity=100)';
				document.getElementById('imgs3').style.opacity = 1;
				document.getElementById('number3').style.backgroundColor='red';
				document.getElementById('number3').style.color='#ffffff';								
			}else if (leftPos <= centimg4 && leftPos >= centimg5){
				document.getElementById('imgs4').style.filter = 'alpha(opacity=100)';
				document.getElementById('imgs4').style.opacity = 1;
				document.getElementById('number4').style.backgroundColor='red';
				document.getElementById('number4').style.color='#ffffff';								
			}else if (leftPos <= centimg5 && leftPos >= centimg6){
				document.getElementById('imgs5').style.filter = 'alpha(opacity=100)';
				document.getElementById('imgs5').style.opacity = 1;
				document.getElementById('number5').style.backgroundColor='red';
				document.getElementById('number5').style.color='#ffffff';
            } else if (leftPos <= centimg6 && leftPos >= centimg7){
				document.getElementById('imgs6').style.filter = 'alpha(opacity=100)';
				document.getElementById('imgs6').style.opacity = 1;
				document.getElementById('number6').style.backgroundColor='red';
				document.getElementById('number6').style.color='#ffffff';								
			}/**/else if (leftPos <= centimg7 && leftPos >= centimg8){
				document.getElementById('imgs7').style.filter = 'alpha(opacity=100)';
				document.getElementById('imgs7').style.opacity = 1;
				document.getElementById('number7').style.backgroundColor='red';
				document.getElementById('number7').style.color='#ffffff';
            } else if (leftPos <= centimg8 && leftPos >= -1152){
				document.getElementById('imgs7').style.filter = 'alpha(opacity=100)';
				document.getElementById('imgs7').style.opacity = 1;
				document.getElementById('number7').style.backgroundColor='red';
				document.getElementById('number7').style.color='#ffffff';								
			}/**/
			
		}
		
	var t =	setTimeout('gallerySlide()',20);
	}

	function clearall(){
			document.getElementById('imgs1').style.filter = 'alpha(opacity=100)';	
			document.getElementById('imgs1').style.opacity = 1;
			document.getElementById('imgs2').style.filter = 'alpha(opacity=100)';	
			document.getElementById('imgs2').style.opacity = 1;
			document.getElementById('imgs3').style.filter = 'alpha(opacity=100)';	
			document.getElementById('imgs3').style.opacity = 1;
			document.getElementById('imgs4').style.filter = 'alpha(opacity=100)';	
			document.getElementById('imgs4').style.opacity = 1;
			document.getElementById('imgs5').style.filter = 'alpha(opacity=100)';	
			document.getElementById('imgs5').style.opacity = 1;
			document.getElementById('imgs6').style.filter = 'alpha(opacity=100)';	
			document.getElementById('imgs6').style.opacity = 1;
			/**/document.getElementById('imgs7').style.filter = 'alpha(opacity=100)';	
			document.getElementById('imgs7').style.opacity = 1;
			document.getElementById('imgs8').style.filter = 'alpha(opacity=100)';	
			document.getElementById('imgs8').style.opacity = 1;			/**/
			
			document.getElementById('number1').style.backgroundColor='#ffffff';
			document.getElementById('number1').style.color='#000000';
			document.getElementById('number2').style.backgroundColor='#ffffff';
			document.getElementById('number2').style.color='#000000';
			document.getElementById('number3').style.backgroundColor='#ffffff';
			document.getElementById('number3').style.color='#000000';
			document.getElementById('number4').style.backgroundColor='#ffffff';
			document.getElementById('number4').style.color='#000000';
			document.getElementById('number5').style.backgroundColor='#ffffff';
			document.getElementById('number5').style.color='#000000';
			document.getElementById('number6').style.backgroundColor='#ffffff';
			document.getElementById('number6').style.color='#000000';
			/**/document.getElementById('number7').style.backgroundColor='#ffffff';
			document.getElementById('number7').style.color='#000000';
			document.getElementById('number8').style.backgroundColor='#ffffff';
			document.getElementById('number8').style.color='#000000';			/**/
									
	}
	
	function showImage(a,b)
	{
		
		
		clearall();
		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;			

			
		if(activeImage){
		centralizeimage()
		
			//imageGalleryObj.style.left = -10;
			if (activeImage.id=='imgs1'){
				imageGalleryObj.style.left = centimg1+'px'
			}else if (activeImage.id=='imgs2'){
				imageGalleryObj.style.left = centimg2+'px'
			}else if (activeImage.id=='imgs3'){
				imageGalleryObj.style.left = centimg3+'px'
			}else if (activeImage.id=='imgs4'){
				imageGalleryObj.style.left = centimg4+'px'
			}else if (activeImage.id=='imgs5'){
				imageGalleryObj.style.left = centimg5+'px'
			}else if (activeImage.id=='imgs6'){
				imageGalleryObj.style.left = centimg6+'px'
			}/**/else if (activeImage.id=='imgs7'){
				imageGalleryObj.style.left = centimg7+'px'
            }else if (activeImage.id=='imgs8'){
				imageGalleryObj.style.left = centimg8+'px'
			}/**/
			slideSpeed = 0;
		}		
	}
	function viewImage(a)
	{
		
		var image = a;
		clearall();
		
		document.getElementById(image).filter = 'alpha(opacity=100)';
		document.getElementById(image).style.opacity = 1;	
		slideSpeed = 0;
		
		centralizeimage()
		if (image=='imgs1'){
			imageGalleryObj.style.left = centimg1+'px'
			document.getElementById('number1').style.backgroundColor='red';
			document.getElementById('number1').style.color='#ffffff';
			document.getElementById('number1').onmouseout = StartCount;			
		}else if (image=='imgs2'){
			imageGalleryObj.style.left = centimg2+'px'
			document.getElementById('number2').style.backgroundColor='red';
			document.getElementById('number2').style.color='#ffffff';
			document.getElementById('number2').onmouseout = StartCount;			
		}else if (image=='imgs3'){
			imageGalleryObj.style.left = centimg3+'px'
			document.getElementById('number3').style.backgroundColor='red';
			document.getElementById('number3').style.color='#ffffff';
			document.getElementById('number3').onmouseout = StartCount;			
		}else if (image=='imgs4'){
			imageGalleryObj.style.left = centimg4+'px'
			document.getElementById('number4').style.backgroundColor='red';
			document.getElementById('number4').style.color='#ffffff';
			document.getElementById('number4').onmouseout = StartCount;			
		}else if (image=='imgs5'){
			imageGalleryObj.style.left = centimg5+'px'
			document.getElementById('number5').style.backgroundColor='red';
			document.getElementById('number5').style.color='#ffffff';
			document.getElementById('number5').onmouseout = StartCount;			
		}else if (image=='imgs6'){
			imageGalleryObj.style.left = centimg6+'px'
			document.getElementById('number6').style.backgroundColor='red';
			document.getElementById('number6').style.color='#ffffff';
			document.getElementById('number6').onmouseout = StartCount;			
		}/**/else if (image=='imgs7'){
			imageGalleryObj.style.left = centimg7+'px'
			document.getElementById('number7').style.backgroundColor='red';
			document.getElementById('number7').style.color='#ffffff';
			document.getElementById('number7').onmouseout = StartCount;
		}else if (image=='imgs8'){
			imageGalleryObj.style.left = centimg8+'px'
			document.getElementById('number8').style.backgroundColor='red';
			document.getElementById('number8').style.color='#ffffff';
			document.getElementById('number8').onmouseout = StartCount;
		}/**/
			

	}
	
	function StartCount()
	{
		startSlide();
	}
	
		
	function initSlideShow()
	{
	
		startSlide();
	
		imageGalleryObj = document.getElementById('theImages');
		imageGalleryLeftPos = imageGalleryObj.offsetLeft;
		
		imageGalleryWidth = document.getElementById('galleryContainer').offsetWidth - 30;
		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;
			slideshowImages[no].onmouseout = StartCount;
		}
	

		gallerySlide();
	}
	
	window.onload = initSlideShow;