function getParameterByName( name )
{
  name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
  var regexS = "[\\?&]"+name+"=([^&#]*)";
  var regex = new RegExp( regexS );
  var results = regex.exec( window.location.href );
  if( results == null )
    return "";
  else
    return results[1];
}

function goto(link)
{
  var logo = getParameterByName('logo');
  if (logo)
  {
    window.location = link.href + '?logo=' + logo;
    return false;
  }
}