flg = (navigator.appName == "Netscape" && parseInt(navigator.appVersion) >= 3) || ((navigator.appName.indexOf("Explorer") > -1) && parseInt(navigator.appVersion) >= 4);
if (flg)
{


  
  Img_menu = new Array("iv","kd","vs","vo","kn","dr","es","ot");
  Path_menu = "/images/menu/";

  var rolls_menu = Img_menu.length;

  function img_arr(){};  
  On_Img = new img_arr();
  Off_Img = new img_arr();

for (var i = 1; i <= rolls_menu; i++) {
  On_Img[Img_menu[i - 1]]=new Image();
  On_Img[Img_menu[i - 1]].src=Path_menu + Img_menu[i - 1] + "_on.gif";
  Off_Img[Img_menu[i - 1]]=new Image();
  Off_Img[Img_menu[i - 1]].src=Path_menu + Img_menu[i - 1] + ".gif";
}

}

function on(name)
{
	if (flg)
		document.images[name].src = On_Img[name].src;
}

function off(name)
{
	if (flg)
		document.images[name].src = Off_Img[name].src;
}