var panels = new Array('wcm_panel1', 'wcm_panel2', 'wcm_panel3');
var selectedTab = null;
function showPanel(tab, name)
{
    if (selectedTab) 
    {
        selectedTab.style.backgroundColor = '';
        selectedTab.style.paddingTop = '';
        selectedTab.style.paddingBottom = '';
    }
    selectedTab = tab;
    selectedTab.style.backgroundColor = 'white';
    selectedTab.style.paddingTop = '4px';
    for(i = 0; i < panels.length; i++)
    {
        document.getElementById(panels[i]).style.display = (name == panels[i]) ? 'block':'none';
    }
    return false;
}