function toggleVis(obj)
 {
        with(document.getElementById(obj).style)
        {
            if(display != 'none')
            {
                    display = 'none';
            }else
            {
                    display = '';
            }
        }
}


function showElement(obj)
 {
        with(document.getElementById(obj).style)
        {
            display = '';
        }
}

function hideElement(obj)
 {
        with(document.getElementById(obj).style)
        {
            display = 'none';
        }
}

 function toggleVis2(obj,prior)
 {
        with(document.getElementById(obj).style)
        {
            if(display != 'none')
            {
                    display = 'none';
            }else
            {
                    display = prior;
            }
        }
}
function WriteContent(cont,obj)
{
    //document.getElementById(obj).firstChild.data=cont;  
    document.getElementById(obj).innerHTML=cont;
}

function selectImage(imageIndex, imageSourceElement, imageUrl, imageTextElement, imageText) 
{
    var currentIndex;
    for(currentIndex = 0; currentIndex < imageLinks.length; currentIndex++)
    {
        if (currentIndex != imageIndex)
        {
            showElement(imageLinks[currentIndex]);
        }
        else
        {
            hideElement(imageLinks[currentIndex]);
        }                    
    }
    
    for(currentIndex = 0; currentIndex < imageLiterals.length; currentIndex++)
    {
        if (currentIndex != imageIndex)
        {
            hideElement(imageLiterals[currentIndex]);
        }
        else
        {
            showElement(imageLiterals[currentIndex]);
        }                    
    }        
  

    if (document.images[imageSourceElement])
    {        
        document.images[imageSourceElement].src = imageUrl;
    }  
    WriteContent(imageText, imageTextElement);
}