my $str = "<header>";
      if ((!$Request->item("ResourceID")->item() && !$Request->item("noHeader")->item()) || !$Session->{'isAuthenticated'})
      {
        
        $str .= "<logo url=\"http://".$Request->ServerVariables("SERVER_NAME")->item()."\" width=\"200\" height=\"62\" alt=\"http://".$Request->ServerVariables("SERVER_NAME")->item()."\">Images/MLXhelp_logo.png</logo>
        
        if($Session->{'isAuthenticated'})
        {
            my $current = "Help";
            if ($Request->item("Tab")->item()){$current = $Request->item("Tab")->item();}
            $str .= "<tabs>";
            $str .= "<current>$current</current>";
            $str .= "<tab id=\"Main\" tab=\"\" view=\"\" title=\"Main\" height=\"28\" width=\"86\" alt=\"Click here to return to the Main Page\"/>";          
            $str .= xmlFileData("Base/optionalTabs", "help2.xml", "header()") if ( $Request->ServerVariables("SERVER_NAME")->item() =~ /mlxhelp/i );
            $str .= xmlFileData("Base/optionalTabs", "help2.xml", "header()") if ( $Request->ServerVariables("SERVER_NAME")->item() =~ /tempohelp/i );
            $str .= xmlFileData("Base/optionalTabs", "support-new.xml", "header()");
            if ($Request->item("Tab")->item() && $str =~ /(.*?<tab id=\"$current\".*?>).*?(<\/tab>.*)/s)
            {
              $str = $1.$2;
            }