var oldlayer

function showlayer(layer){
    if (document.all)
    {
        if (oldlayer)
        {
            showHideContent(oldlayer, true);
            showHideContent(oldlayer, false);
        }
        showHideContent(layer, false);
        showHideContent(layer, true);
    }
    oldlayer=layer;
}

function showHideContent(id, show)
{
    var elem = document.getElementById(id);
    if (elem) 
    {
        if (show) 
        {
            elem.style.display = 'block';
            elem.style.visibility = 'visible';
        } 
        else
        {
            elem.style.display = 'none';
            elem.style.visibility = 'hidden';
        }
    }
}

function openWindow() {
popupWin=window.open('pop2.asp','remote','width=500,height=220,top=100,left=100')
}