function show(obj) {
  var el = document.getElementById(obj);
  this.delay = {
          "hide": 100
    }
  if ( el.style.display == 'none' ) {
    el.style.display = '';
  }
}
function hide(obj) {

  var el = document.getElementById(obj);
  if ( el.style.display != 'none' ) {
    el.style.display = 'none';
    
  }
 
}