function gs_tree_click(node)
			{
			objNode = document.getElementById('GS_Tree_' + node + '_Header');			
			objResult = document.getElementById('GS_Tree_' + node + '_Results');
			if (objResult.style.display == 'none' || objResult.style.display=='') 
				{
				objResult.style.display = 'block';
				objNode.className='GS_Tree_Header-Open';
				}
			else 
				{
				objResult.style.display = 'none';
				objNode.className='GS_Tree_Header-Closed';
				}
			}