function ShowGoogle()
{
 document.getElementById('seo_google').style.display = '';
 document.getElementById('seo_yandex').style.display = 'none';
 document.getElementById('mg-google').innerHTML = ' ';
 document.getElementById('mg-ya').innerHTML = '<a href="#" OnClick="ShowYandex();return false;">&nbsp;</a>';
}

function ShowYandex()
{
 document.getElementById('seo_google').style.display = 'none';
 document.getElementById('seo_yandex').style.display = '';
 document.getElementById('mg-google').innerHTML = '<a href="#" OnClick="ShowGoogle();return false;">&nbsp;</a>';
 document.getElementById('mg-ya').innerHTML = '&nbsp;';
}