var UA  = navigator.userAgent;
var Mac = navigator.appVersion.indexOf('Mac',0) != -1;
var Win = navigator.appVersion.indexOf('Win',0) != -1;
var IE  = navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1;
var NN  = navigator.appName.indexOf("Netscape",0) != -1;
var NN4 = document.layers;
var Moz = UA.indexOf("Gecko/") != -1;
var Opera  = window.opera;
var Opera6 = navigator.userAgent.indexOf("Opera 6") != -1;
var Opera7 = navigator.userAgent.indexOf("Opera 7") != -1;
var Safari = UA.indexOf("Safari") != -1;
var Vmajor = parseInt(navigator.appVersion); // ex. 3
var Vminor = parseFloat(navigator.appVersion); // ex. 3.01
var WinIE55 = ((Win && navigator.appVersion.indexOf('MSIE 5.5',0) != -1));
var MacIE5 = ((Mac && navigator.appVersion.indexOf('MSIE 5.',0) != -1));
var MacIE4 = ((Mac && navigator.appVersion.indexOf('MSIE 4.',0) != -1));
var MacIE3 = ((Mac && navigator.appVersion.indexOf('MSIE 3.',0) != -1));
var iCab = (navigator.userAgent.indexOf("iCab",0) != -1);

function preloadImg(imgName) {
 if (document.images) (new Image()).src = imgName;
}

function swapImage(target,src) { // 020507
 var NN4_layerPath;
 if (arguments.length > 2 && document.layers) {
  NN4_layerPath = "";
  for (i=2; i<arguments.length; i++) NN4_layerPath += 'document.layers["' + arguments[i] + '"].';
  eval(NN4_layerPath + 'document.images["' + target + '"]').src = src;
  return;
 }
 document.images[target].src = src;
}

function openWindow(url,title,options) {
 var newWin;
 if (!!window && url) {
  if (!title) title = "_blank";
  if (!options) {
   options = "toolbar=yes,location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,resizable=yes,favorites=yes";
  }
  newWin = window.open(url,title,options);
  if (!WinIE55) newWin.focus();
 }
}

/* js component for "reloading page onResize"
   original source: resize.js 0.3 970811 by gary smith */
 if(!window.saveInnerWidth && document.layers) {
   window.onresize = resizeIt;
   window.saveInnerWidth = window.innerWidth;
   window.saveInnerHeight = window.innerHeight;
 }
function resizeIt() {
    if (saveInnerWidth < window.innerWidth || 
        saveInnerWidth > window.innerWidth || 
        saveInnerHeight > window.innerHeight || 
        saveInnerHeight < window.innerHeight ) 
    {
        window.history.go(0);
    }
}