function changeImage(imgName1,type) {
        var imgFile1 = eval(imgName1 + type + "Img.src")
		document.images[imgName1].src = imgFile1
		return false
}


function DetectBrowser()
{
  var version = 0;
  if (navigator.userAgent.indexOf("Mozilla/3.0") != -1) version = 3;
  else if (navigator.userAgent.indexOf("Mozilla/4.0") != -1) version = 3;
  else if (navigator.userAgent.indexOf("Mozilla/2.0") != -1) version = 2;
  else if (navigator.userAgent.indexOf("MSIE") != -1) version = 1;
  else version = 0;
  return version;
}


agent = navigator.userAgent
browserVer = DetectBrowser();
// preload universal images:
//if (browserVer == 3) 
{
//Images declarations
var NavBostonNormImg = new Image(57,27)
var NavBostonOverImg = new Image(57,27)
var NavAtlantaNormImg = new Image(73,27)
var NavAtlantaOverImg = new Image(73,27)
var NavUrbanaNormImg = new Image(124,27)
var NavUrbanaOverImg = new Image(124,27)
var NavGorgeNormImg = new Image(126,27)
var NavGorgeOverImg = new Image(126,27)
var Nav24hrsNormImg = new Image(99,27)
var Nav24hrsOverImg = new Image(99,27)
var NavCanyonNormImg = new Image(103,27)
var NavCanyonOverImg = new Image(103,27)
var NavFavoritesNormImg = new Image(104,27)
var NavFavoritesOverImg = new Image(104,27)
var PartyButtonNormImg = new Image(220,110)
var PartyButtonOverImg = new Image(220,110)
var PlacesButtonNormImg = new Image(220,110)
var PlacesButtonOverImg = new Image(220,110)
var PublicButtonNormImg = new Image(220,110)
var PublicButtonOverImg = new Image(220,110)

NavBostonNormImg.src = "/images/nav_boston.gif"
NavBostonOverImg.src = "/images/nav_boston_over.gif"
NavAtlantaNormImg.src = "/images/nav_atlanta.gif"
NavAtlantaOverImg.src = "/images/nav_atlanta_over.gif"
NavUrbanaNormImg.src = "/images/nav_urbana.gif"
NavUrbanaOverImg.src = "/images/nav_urbana_over.gif"
NavGorgeNormImg.src = "/images/nav_gorge.gif"
NavGorgeOverImg.src = "/images/nav_gorge_over.gif"
Nav24hrsNormImg.src = "/images/nav_24hrs.gif"
Nav24hrsOverImg.src = "/images/nav_24hrs_over.gif"
NavCanyonNormImg.src = "/images/nav_canyon.gif"
NavCanyonOverImg.src = "/images/nav_canyon_over.gif"
NavFavoritesNormImg.src = "/images/nav_favorites.gif"
NavFavoritesOverImg.src = "/images/nav_favorites_over.gif"
PartyButtonNormImg.src = "graphics/party_button.gif"
PartyButtonOverImg.src = "graphics/party_button_over.gif"
PlacesButtonNormImg.src = "graphics/places_button.gif"
PlacesButtonOverImg.src = "graphics/places_button_over.gif"
PublicButtonNormImg.src = "graphics/public_button.gif"
PublicButtonOverImg.src = "graphics/public_button_over.gif"
}