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93 var isIE = document.all?true:false;
var loadingImgBuf = new Image();
var loadingImgLoaded = false;
var imgBuf = new Image();
var loadedImages = new Array();
var thumbWidth = 150;
var loadingImg = 'lightbox/loading.gif';
var image_file;

function loadLoadingImg()
{
    if(loadingImgLoaded == false)
    {
        loadingImgBuf.src = loadingImg;
        
        loadingImgBuf.onload = function()
        {
            loadingImgLoaded = true;
        }
    }
}

function showImagePreview(filename)
{
    image_file = filename;
    
    if (!isIE)
    {
        document.captureEvents(Event.MOUSEOVER);
    }
    
    if(loadedImages[filename] == null)
    {
        document.getElementById('preview_image').width = 84;
        document.getElementById('preview_image').src = loadingImg;
        
        document.onmousemove = setPreviewDivLocation;
        document.getElementById('preview_div').style.display = 'block';
        
        imgBuf.src = filename;
        
        imgBuf.onload = function()
        {
            if(imgBuf.width > thumbWidth)
            {
                document.getElementById('preview_image').width = thumbWidth;
            }
            else
            {
                document.getElementById('preview_image').width = imgBuf.width;
            }
            
            document.getElementById('preview_image').src = filename;
            
            loadedImages[filename] = true;
            loadedImages[filename] = new Array();
            loadedImages[filename]['width'] = document.getElementById('preview_image').width;
        }
    }
    else
    {
        document.getElementById('preview_image').src = filename;
        document.getElementById('preview_image').width = loadedImages[filename]['width'];
        
        document.onmousemove = setPreviewDivLocation;
        document.getElementById('preview_div').style.display = 'block';
    }
}

function hideImagePreview()
{
    document.getElementById('preview_div').style.display = 'none';
}

function setPreviewDivLocation(e) 
{
    var _x;
    var _y;
    
    if (!isIE) 
    {
        _x = e.pageX;
        _y = e.pageY;
    }
    else
    {
        _x = event.clientX + document.body.scrollLeft;
        _y = event.clientY + document.body.scrollTop;
    }
    
    document.getElementById('preview_div').style.left = (_x+20)+"px";
    document.getElementById('preview_div').style.top = (_y-4)+"px";
}