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Save results in the database

I have created a table with javascript code, I can mark the cells and change color, but what I need is for me to save that data from the cells I have marked so that users of my website can save their available hours in the table.

<html lang="es">
  <meta http-equiv="Content-Type" content="text/html" charset="UTF-8" />

  <head>
   
    
  <script language="javascript" type="text/javascript">
    function ilumina(celda){
     if (celda.style.backgroundColor=="yellow")
         {
         celda.style.backgroundColor="PeachPuff";
         }
     else
         {
         celda.style.backgroundColor="yellow";
         }
     }
   </SCRIPT>
  <table border="1" summary="Los grupos de música punk más famosos del Reino Unido">
    <caption>CLICK ON THE CELLS TO SELECT YOUR AVAILABLE HOURS</caption>
    <thead>
      <tr>
        <th scope="col">Grupo</th>
        <th scope="col">Año de formación</th>
        <th scope="col">Número de álbumes</th>
        <th scope="col">Canción más conocida</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <th scope="row">LUNES</th>
        <td bgcolor="PeachPuff" onclick="ilumina(this)">9-10 a.m</td>
        <td bgcolor="PeachPuff" onclick="ilumina(this)">10-11 a.m</td>
        <td bgcolor="PeachPuff" onclick="ilumina(this)">11-12 a.m</td>
      </tr>
      <tr>
        <th scope="row">MARTES</th>
        <td bgcolor="PeachPuff" onclick="ilumina(this)">9-10 a.m</td>
        <td bgcolor="PeachPuff" onclick="ilumina(this)">10-11 a.m</td>
        <td bgcolor="PeachPuff" onclick="ilumina(this)">11-12 a.m</td>
      </tr>
  
        
  
      <tr>
        <th scope="row">MIERCOLES</th>
        <td bgcolor="PeachPuff" onclick="ilumina(this)">9-10 a.m</td>
        <td bgcolor="PeachPuff" onclick="ilumina(this)">10-11 a.m</td>
        <td bgcolor="PeachPuff" onclick="ilumina(this)">11-12 a.m</td>
      </tr>
    </tbody>
  </table>
  PULSE SOBRE LAS CELDAS PARA SELECCIONAR SUS HORAS DISPONIBLES
  </body>
  <meta>
</html>
Via Active questions tagged javascript - Stack Overflow https://ift.tt/z6q7B29
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