friendica/include/main.js

  function openClose(theID) {
    if(document.getElementById(theID).style.display == "block") { 
      document.getElementById(theID).style.display = "none" 
    }
    else { 
      document.getElementById(theID).style.display = "block" 
    } 
  }

  function openMenu(theID) {
      document.getElementById(theID).style.display = "block" 
  }

  function closeMenu(theID) {
      document.getElementById(theID).style.display = "none" 
  }