$tabulka .= <<<ENDHTML
  <tr>                                  
 
     <td> <a href="form_inst_input_0.php?Name='$inst_acronym'"
        title="View Institution identification card (2) for '$inst_acronym'">$inst_acronym</a> </td>   
     <td>$inst_name_en</td>

     <td style="text-align: center">$hod1</td>                                                                                            
      <td style="text-align: center">$hod2</td>   

 
  </tr>
ENDHTML;