$(document).ready(function(){

  var products_id = $("input[name=products_id]").val();
  var data = { products_id: products_id };
  /*
  $.getJSON("json_info.php", data,
    function(res) {
      $("#products-installation-cont").html(res.products_installation);
      $("#products-maintenance-cont").html(res.products_maintenance);
    });
  */

  $("#section-7-link").click(function() {
    $("#products-installation-cont").load("installation.php", data);
  });

  $("#section-8-link").click(function() {
    $("#products-maintenance-cont").load("maintenance.php", data);
  });

});