text: // MYSQL Checkbox
  function showmysqlcontent() {
      var checkbox = document.getElementById('mysqlcheckbox');
      var change = document.getElementById('mysqlcontent');
      var change2 = document.getElementById('sourcemysql');
      
      var change3 = document.getElementById('mysqlvisual');
  
      if (checkbox.checked == true) {
          change.style.display="block";
          change2.style.display="block";
         
          change3.style.display="block";
      } else {
          change.style.display="none";
          change2.style.display="none";
          change3.style.display="none";
      }
  }
  // CSV Checkbox
  function showcsvcontent() {
      var checkbox = document.getElementById('csvcheckbox');
      var change = document.getElementById('csvcontent');
      var change2 = document.getElementById('sourcecsv');
      var change3 = document.getElementById('csvvisual');
      if (checkbox.checked == true) {
          change.style.display="block";
          change2.style.display="block";
          change3.style.display="block";
      } else {
          change.style.display="none";
          change2.style.display="none";
          change3.style.display="none";
      }
  }
  // Select Source MYSQL
  function showmysql() {
      var checkbox = document.getElementById('mysqlsource');
      var change2 = document.getElementById('sourcemysql');
      if (checkbox.checked == true) {
          change2.style.display="block";
      } else {
          change2.style.display="none";
      }
  }
  // Select Source CSV
  function showcsv() {
      var checkbox = document.getElementById('csvsource');
      var change2 = document.getElementById('sourcecsv');
      if (checkbox.checked == true) {
          change2.style.display="block";
      } else {
          change2.style.display="none";
      }
  }