// JavaScript Document
		function hideShow(block_name, block_name1, link_name)
		{
			  st=document.getElementById(block_name).style.display;
			  if (st=='none')
				{
				document.getElementById(block_name).style.display='block'; 
				document.getElementById(block_name1).style.display='none'; 
				//document.getElementById(link_name).title="????????";
				}
				
			  else
				{
				document.getElementById(block_name).style.display='none'; 
				document.getElementById(block_name1).style.display='block'; 
				//document.getElementById(link_name).title="??????????";
				 }
		
		}