//<!-- Ìõ·ùÒþ²Ø -->
	  function $(o){ return (typeof o == "object")?o:document.getElementById(o);}
				$("Nav1s").onclick = function() {$("Nav1").className="undis";$("Nav2").className="dis";}
				$("Nav2s").onclick = function() {$("Nav2").className="undis";$("Nav1").className="dis";}