function docollapse(thingstring) {
	   thing = document.getElementById(thingstring);

	   if (thing.style.height == '') {
		   thing.style.visibility = 'visible';
		   thing.style.height = '1px';
		   thing.style.display = 'block';
		   thing.style.overflow = 'hidden';
	   } else {
		   thing.style.visibility = 'visible'
		   thing.style.height = '';
		   thing.style.display = 'block';
	   }

   }