sMenuOpen = '';
function F_OpenMenu(sMenu) {

    if (document.getElementById('div' + sMenu) == null)
        return;
        
    if (document.getElementById('div' + sMenu).style.display != "none")
    {
        oMenuInt = document.getElementById('div' + sMenu);
        oMenuInt.style.display = 'block';

        sMenuOpen = sMenu;
        sMenuActivated = 1;

    }

    if (sMenu == sMenuOpen)
    {
        oMenuInt = document.getElementById('div' + sMenu);
        oMenuInt.style.display = 'none';

        document.getElementById('mn' + sMenu).className = 'mn' + sMenu;
        
        sMenuOpen = '';
        sMenuActivated = 0;
        
    } else if (sMenuOpen == '')
    {
        oMenuInt = document.getElementById('div' + sMenu);
        oMenuInt.style.display = 'block';

        document.getElementById('mn' + sMenu).className = 'mn' + sMenu + '-';

        sMenuOpen = sMenu;
        sMenuActivated = 1;
        
    } else if (sMenuOpen != sMenu)
    {
        sMenuActivated = 0;
        oMenuInt = document.getElementById('div' + sMenuOpen);
        oMenuInt.style.display = 'none';
        document.getElementById('mn' + sMenuOpen).className = 'mn' + sMenuOpen;
        

        oMenuInt = document.getElementById('div' + sMenu);
        oMenuInt.style.display = 'block';
        document.getElementById('mn' + sMenu).className = 'mn' + sMenu + '-';

        sMenuOpen = sMenu;
        sMenuActivated = 1;
    }
}