function ToggleNextSibling(element)
{
    if (element.nextSibling.style.display == "none")
   {
          element.nextSibling.style.display = "block";
    }
    else
    {
        element.nextSibling.style.display = "none";
    }
}

function ToggleDisplayById(ElementId)
{
    var element  = document.getElementById(ElementId);
    
    if (element.style.display == "none")
   {
          element.style.display = "block";
    }
    else
    {
        element.style.display = "none";
    }
}

function ShowFeatures(DropListlId, PanelIdArray)
{
    var DropList = document.getElementById(DropListlId);
    var dlIndex = DropList.value ;
   
    for (var i = PanelIdArray.length -1; i > -1; i--)
    {
        if(i==dlIndex)
            document.getElementById( PanelIdArray[i] ).style.display = "block";
       else
            document.getElementById( PanelIdArray[i] ).style.display = "none"; 
    }
}


function ToggleDisplayByElement(element)
{   
    if (element.style.display == "none")
   {
          element.style.display = "block";
    }
    else
    {
        element.style.display = "none";
    }
}

function ShowFeaturesByElement(DropList, PanelIdArray)
{
    var dlIndex = DropList.value ;   
   
    for (var i = PanelIdArray.length -1; i > -1; i--)
    { 
        if(PanelIdArray[i]==dlIndex)
            window[PanelIdArray[i]].style.display = "block";
       else
            window[PanelIdArray[i]].style.display = "none"; 
    }
}