function initPage() {
   var showHide1 = document.getElementById('showHide1');
   var showHide2 = document.getElementById('showHide2');
   var showHide3 = document.getElementById('showHide3');
   var showHide4 = document.getElementById('showHide4');
   showHide1.style.display = 'none';
   showHide2.style.display = 'none';
   showHide3.style.display = 'none';
   showHide4.style.display = 'none';
   }
  function toggle(obj) {
  var menu = document.getElementById(obj);
  if (menu.style.display == 'none'){
  	menu.style.display = 'block';
	} else {
	menu.style.display = 'none';
	}
}