var displayWaitMessage=true;        // Display a please wait message while images are loading?





        var gactiveImage = false;

        var imageGalleryLeftPos = false;

        var imageGalleryWidth = false;

        var imageGalleryObj = false;

        var maxGalleryXPos = false;

        var slideSpeed = 5;

        var imageGalleryCaptions = new Array();

        function startSlide(e)

        {

                if(document.all)e = event;

                var id = this.id;

                this.getElementsByTagName('IMG')[0].src = base_url+'images/gallery/' + 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 = base_url+'images/gallery/' + 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(gactiveImage)
        	  {

                        gactiveImage.style.filter = 'alpha(opacity=50)';

                        gactiveImage.style.opacity = 0.5;

               }

                this.style.filter = 'alpha(opacity=100)';

                this.style.opacity = 1;

                gactiveImage = 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 - 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;

                }

                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];



                if(displayWaitMessage){

                        document.getElementById('waitMessage').style.display='inline';

                }

                document.getElementById('largeImageCaption').style.display='none';

                img.onload = function() { hideWaitMessageAndShowCaption(imageIndex-1); };

                img.src = imagePath;



        }

        function hideWaitMessageAndShowCaption(imageIndex)

        {

                document.getElementById('waitMessage').style.display='none';

                document.getElementById('largeImageCaption').innerHTML = imageGalleryCaptions[imageIndex];

                document.getElementById('largeImageCaption').style.display='block';



        }

        Event.observe(window, 'load', initSlideShow, false);
        
        function start_lightbox(image)
        {
        	image = document.getElementById(image);
        	myLightbox.start(image);
        	return false;
        }