var dom = (document.getElementById) ? true : false;
var n=navigator;d=document;ua=n.userAgent.toLowerCase();av=parseFloat(n.appVersion);an=n.appName.toLowerCase();
var os={win:ua.indexOf("win")!=-1,mac:ua.indexOf("mac")!=-1||ua.indexOf("ppc")!=-1};
var ie=ua.indexOf("msie")!=-1;
var ietver = {ie5:ua.indexOf("msie 5.")!=-1&&ie,ie6:ua.indexOf("msie 6.")!=-1};
var nn4 = (document.layers) ? true : false;
var ie4 = (!dom && document.all) ? true : false;
var opera = (ua.indexOf("opera")==-1) ? true : false;


var id = 0; var lang = 1;var href = 2; var link = 3;

var show_style = (nn4) ? 'show' : 'visible';
var hide_style = (nn4) ? 'hide' : 'hidden';

var currentIndx = -1;
var layer_width = new Array(169,149,159,159);

submenu = new Array();
menu_item = new Array();
upmenu = new Array();