function ActiveTab(tab)
{
    DeactiveTab('TAB1');
	DeactiveTab('TAB2');
    document.getElementById(tab).style.display = 'block';
    document.getElementById(tab + '_Left').className = 'Block24hActiveLeft';
    document.getElementById(tab + '_Center').className = 'Block24hActiveBg';
    document.getElementById(tab + '_Right').className = 'Block24hActiveRight';
}
function DeactiveTab(tab)
{
    document.getElementById(tab).style.display = 'none';
    document.getElementById(tab + '_Left').className = 'Block24hNormalLeft';
    document.getElementById(tab + '_Center').className = 'Block24hNormalBg';
    document.getElementById(tab + '_Right').className = 'Block24hNormalRight';
}