function hideAll() {
HideContent('menuapps');
HideContent('menuapps1');
HideContent('menuapps4');
HideContent('menuplaces');
HideContent('menusystem');
HideContent('menusystem1');
HideContent('menusystem2');
HideContent('menujoe');
HideContent('wireless');
HideContent('menuvpn');
}