// JavaScript Document
showed=null;

function showhide(id) 
{
	if(showed!=null)
	{
		//document.getElementById(showed).style.display = "none";
		if(showed!=id)
		{
		document.getElementById(id).style.display = "block";
		document.getElementById('a'+id).className="act";
		showed=id;
		}
		else
		{
		showed=null;
		}
	}
	else
	{
		if(document.getElementById(id).style.display =="none")
		{		
			document.getElementById(id).style.display = "block";
			document.getElementById('a'+id).className="act";
			showed=id;
		}
		else
		{
			document.getElementById(id).style.display = "none";
			showed=null;
		}

	}
}