function Open(id)
	{
		var html = document.getElementById("img" + id).innerHTML;
		if(html=="-")
		{
			 document.getElementById("img" + id).innerHTML="+";
			 document.getElementById("table" + id).style.display="none";
		}
		else
		{
			 document.getElementById("img" + id).innerHTML="-";
			 document.getElementById("table" + id).style.display="block";		
		}
		return false;
	}