function showhide(idThisElement)
{
 var elemThisElement = document.getElementById(idThisElement)
  if (elemThisElement)
   {
    if (elemThisElement.style.display == 'none' || elemThisElement.style.display == '')
     {
      elemThisElement.style.display = 'block';
     }
    else
     {
      elemThisElement.style.display = 'none';
     }
   }
}
function expandall() {
var styleElements = document.getElementsByTagName("div");
	for(var i = 0; i < styleElements.length; i++) {
	styleElements[i].style.display='block';
	}
}
function collapseall() {
var styleElements = document.getElementsByTagName("div");
	for(var i = 0; i < styleElements.length; i++) {
	styleElements[i].style.display='none';
	}
}