if (document.images) {
   	  var menu1up = new Image();
   	  menu1up.src = "images/menu/1_1.gif";
   	  var menu1dn = new Image();
   	  menu1dn.src = "images/menu/1_2.gif";
	  
   	  var menu2up = new Image();
   	  menu2up.src = "images/menu/2_1.gif";
   	  var menu2dn = new Image();
   	  menu2dn.src = "images/menu/2_2.gif";
	  
   	  var menu3up = new Image();
   	  menu3up.src = "images/menu/3_1.gif";
   	  var menu3dn = new Image();
   	  menu3dn.src = "images/menu/3_2.gif";
	  	  
   	  var menu4up = new Image();
   	  menu4up.src = "images/menu/4_1.gif";
   	  var menu4dn = new Image();
   	  menu4dn.src = "images/menu/4_2.gif";
  
   	  var menu5up = new Image();
   	  menu5up.src = "images/menu/5_1.gif";
   	  var menu5dn = new Image();
   	  menu5dn.src = "images/menu/5_2.gif";
  
   	  var menu6up = new Image();
   	  menu6up.src = "images/menu/6_1.gif";
   	  var menu6dn = new Image();
   	  menu6dn.src = "images/menu/6_2.gif";
	  
   	  var menu7up = new Image();
   	  menu7up.src = "images/menu/7_1.gif";
   	  var menu7dn = new Image();
   	  menu7dn.src = "images/menu/7_2.gif";	  

	  }
	function act(imgName) {
   	  if (document.images) 
      document[imgName].src = eval(imgName + 'dn.src');
	  }
	function inact(imgName) {
	  if (document.images)
	  document[imgName].src = eval(imgName + 'up.src');
	  }// JavaScript Document