function toggle(x) {
        var xTog = document.getElementById(x);
        var xState = xTog.style.display;
        if (xState == 'none') { 
                xState = ''; 
        } else { 
                xState = 'none'; 
        }
        xTog.style.display = xState;
}
function vtoggle(x) {
        var xTog = document.getElementById(x);
        var xIndex = xTog.style.visibility;
        if (xIndex == 'hidden') { 
                xIndex = 'visible'; 
                xTog.style.position='relative';
                xTog.style.left='auto';
                xTog.style.top='auto';
                if(!map) {
                        showmap();
                }
                map.checkResize();
        } else { 
                xIndex = 'hidden'; 
                xTog.style.position='absolute';
                xTog.style.left='-3000px';
                xTog.style.top='-3000px';
        }
        xTog.style.visibility = xIndex;
}