$(document).ready(function(){
		$("#nav001").mouseover(function(){
			$(this).attr("src","images/tx01_2.gif");
		});
		$("#nav001").mouseout(function(){
			$(this).attr("src","images/tx01.gif");
		});
		$("#nav002").mouseover(function(){
			$(this).attr("src","images/tx02_2.gif");
		});
		$("#nav002").mouseout(function(){
			$(this).attr("src","images/tx02.gif");
		});
		$("#nav003").mouseover(function(){
			$(this).attr("src","images/tx03_2.gif");
		});
		$("#nav003").mouseout(function(){
			$(this).attr("src","images/tx03.gif");
		});
		$("#nav004").mouseover(function(){
			$(this).attr("src","images/tx04_2.gif");
		});
		$("#nav004").mouseout(function(){
			$(this).attr("src","images/tx04.gif");
		});
	});