function ShowContentBlock(showobj, tabobj)
{
    document.getElementById('tablink1').style.backgroundColor = '#f3f3f3';
    document.getElementById('tablink2').style.backgroundColor = '#f3f3f3';
    document.getElementById('tablink3').style.backgroundColor = '#f3f3f3';
    document.getElementById('tablink1').style.color = '#555';
    document.getElementById('tablink2').style.color = '#555';
    document.getElementById('tablink3').style.color = '#555';
        
    document.getElementById('contentblock1').style.display = 'none';
    document.getElementById('contentblock2').style.display = 'none';
    document.getElementById('contentblock3').style.display = 'none';

    tabobj.style.color = '#FFFFFF';
    tabobj.style.backgroundColor = '#4097e2';
    showobj.style.display = 'block';
}

function ShowContentBlock2(showobj, tabobj)
{
    document.getElementById('tablink1').style.backgroundColor = '#f3f3f3';
    document.getElementById('tablink2').style.backgroundColor = '#f3f3f3';
    //document.getElementById('tablink3').style.backgroundColor = '#f3f3f3';
    document.getElementById('tablink1').style.color = '#555';
    document.getElementById('tablink2').style.color = '#555';
    //document.getElementById('tablink3').style.color = '#555';
        
    document.getElementById('contentblock1').style.display = 'none';
    document.getElementById('contentblock2').style.display = 'none';
    //document.getElementById('contentblock3').style.display = 'none';

    tabobj.style.color = '#FFFFFF';
    tabobj.style.backgroundColor = '#4097e2';
    showobj.style.display = 'block';
}