AddOnLoadFunction("PreloadDocumentImages", "PreloadDocumentImages()");

function PreloadDocumentImages()
{
    var ImagePlus = new Image();
    ImagePlus.src = "images/plus.gif";
    
    var ImageMinus = new Image();
    ImageMinus.src = "images/minus.gif";
}

function ToggleDocView(vid)
{
    var ToggleDiv = document.getElementById("divt" + vid);
    
    if (ToggleDiv)
    {
        var ToggleImage = document.getElementById("imgt" + vid);
        
        if (ToggleDiv.style.display == "block")
        {
            ToggleDiv.style.display = "none";
            if (ToggleImage && ToggleImage.src)
            {
                ToggleImage.src = "images/plus.gif";
            }
        }
        else
        {
            ToggleDiv.style.display = "block";
            if (ToggleImage && ToggleImage.src)
            {
                ToggleImage.src = "images/minus.gif";
            }
        }
    }
    
}