sub bb(obj)
	    if document.getElementById(obj) is nothing then
	        exit sub
	    end if
	    if  document.getElementById(obj).style.display="none" then
	        document.getElementById(obj).style.display="block"
	        document.getElementById("img" & mid(obj,3)).src="/images/menu_open.gif"
	    else
	        document.getElementById(obj).style.display="none"
	        document.getElementById("img" & mid(obj,3)).src="/images/menu_close.gif"
	    end if
	end sub
	sub bb2(obj)
	    if document.getElementById(obj) is nothing then
	        exit sub
	    end if
	    if  document.getElementById(obj).style.display="none" then
	        document.getElementById(obj).style.display="block"
	    else
	        document.getElementById(obj).style.display="none"
	    end if
	end sub