var panels = new Array();

function clearPanels()
{
    panels = new Array();
}

function addPanel(panelId)
{
    panels.push(panelId);
}

function show(panelIndex)
{
    var i = 0; 
        
    for(; i<panelIndex; i++) 
    {
        $get(panels[i]).style.display = 'none';
    }
    
    $get(panels[i++]).style.display = 'block';
    
    for(; i<panels.length; i++) 
    {
        $get(panels[i]).style.display = 'none';
    }
}

if (typeof(Sys) !== 'undefined') Sys.Application.notifyScriptLoaded();