function Show(object, bShow)
{
    if (bShow == true)
    {
        document.getElementById(object).style.visibility="visible";    
        document.getElementById(object).style.display="block";         
    }
    else
    {
        document.getElementById(object).style.visibility="hidden";  
        document.getElementById(object).style.display="none";                           
    }
}

function HidePanel(object, closedImg, expandImg)
{
    var visible = document.getElementById(object).style.visibility=="visible";
    if (visible == false)
    {
        Show(object, true);
        Show(closedImg, true);
        Show(expandImg, false);                
    }
    else
    {
        Show(object, false);
        Show(closedImg, false);
        Show(expandImg, true);                
        
    }
}