function listProperties()
{
  var browser = "BROWSER INFO:\n";
  for (var propname in navigator)
  {
    browser += propname + ": " + navigator[propname] + "\n";
  }
  return browser;
}

function isIE()
{
  var retVal = false;
  if (navigator)
  {
    if (navigator.appName.indexOf("Microsoft") != -1)
    {
      if (navigator.appVersion.indexOf("MSIE") != -1)
        retVal = true;
    }
  }
  return retVal;
}

function isIE6()
{
  var retVal = false;
  if (navigator)
  {
    if (navigator.appName.indexOf("Microsoft") != -1)
    {
      if (navigator.appVersion.indexOf("MSIE 6.0") != -1)
        retVal = true;
    }
  }
  return retVal;
}

function isIE55()
{
  var retVal = false;
  if (navigator)
  {
    if (navigator.appName.indexOf("Microsoft") != -1)
    {
      if (navigator.appVersion.indexOf("MSIE 5.5") != -1)
        retVal = true;
    }
  }
  return retVal;
}

function isIE5Up()
{
	return (document.getElementById) != null;
}

function isMac()
{
  var retVal = false;
  if (navigator)
  {
    if (navigator.platform.indexOf("Mac") != -1)
    {
      retVal = true;
    }
  }
  return retVal;
}

function isSafari()
{
  var retVal = false;
  if (navigator)
  {
    if (navigator.userAgent.indexOf("Safari") != -1)
    {
      retVal = true;
    }
  }
  return retVal;
}

function isOpera()
{
  var retVal = false;
  if (navigator)
  {
    if (navigator.userAgent.indexOf("Opera") != -1)
    {
      retVal = true;
    }
  }
  return retVal;
}

function isKHTML()
{
  var retVal = false;
  if (navigator)
  {
    if (navigator.userAgent.indexOf("KHTML") != -1)
    {
      retVal = true;
    }
  }
  return retVal;
}

var BrowserDetect = {
	init: function () {
		this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
		this.version = this.searchVersion(navigator.userAgent)
			|| this.searchVersion(navigator.appVersion)
			|| "an unknown version";
		this.OS = this.searchString(this.dataOS) || "an unknown OS";
	},
	searchString: function (data) {
		for (var i=0;i<data.length;i++)	{
			var dataString = data[i].string;
			var dataProp = data[i].prop;
			this.versionSearchString = data[i].versionSearch || data[i].identity;
			if (dataString) {
				if (dataString.indexOf(data[i].subString) != -1)
					return data[i].identity;
			}
			else if (dataProp)
				return data[i].identity;
		}
	},
	searchVersion: function (dataString) {
		var index = dataString.indexOf(this.versionSearchString);
		if (index == -1) return;
		return parseFloat(dataString.substring(index+this.versionSearchString.length+1));
	},
	dataBrowser: [
		{ 	string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari"
		},
		{
			prop: window.opera,
			identity: "Opera"
		},
		{
			string: navigator.vendor,
			subString: "iCab",
			identity: "iCab"
		},
		{
			string: navigator.vendor,
			subString: "KDE",
			identity: "Konqueror"
		},
		{
			string: navigator.userAgent,
			subString: "Firefox",
			identity: "Firefox"
		},
		{
			string: navigator.vendor,
			subString: "Camino",
			identity: "Camino"
		},
		{		// for newer Netscapes (6+)
			string: navigator.userAgent,
			subString: "Netscape",
			identity: "Netscape"
		},
		{
			string: navigator.userAgent,
			subString: "MSIE",
			identity: "Explorer",
			versionSearch: "MSIE"
		},
		{
			string: navigator.userAgent,
			subString: "Gecko",
			identity: "Mozilla",
			versionSearch: "rv"
		},
		{
			string: navigator.userAgent,
			subString: "SeaMonkey",
			identity: "SeaMonkey"
		},
		{ 		// for older Netscapes (4-)
			string: navigator.userAgent,
			subString: "Mozilla",
			identity: "Netscape",
			versionSearch: "Mozilla"
		}
	],
	dataOS : [
		{
			string: navigator.platform,
			subString: "Win",
			identity: "Windows"
		},
		{
			string: navigator.platform,
			subString: "Mac",
			identity: "Mac"
		},
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]

};
BrowserDetect.init();


function isSVGEnabled()
{
  var retVal = false;
  /*
  if (navigator)
  {
		var userAgent = 
    if (navigator.userAgent.indexOf("Firefox/1.5") != -1 || 
				navigator.userAgent.indexOf("Firefox/2") != -1 ||
				navigator.userAgent.indexOf("BonEcho/2") != -1 ||
				navigator.userAgent.indexOf("SeaMonkey/1") != -1 ||
				navigator.userAgent.indexOf("Camino/1") != -1 ||
				navigator.userAgent.indexOf("Opera/9") != -1)
    {
      retVal = true;
    }
  }
  */
  if (BrowserDetect.browser == "Firefox" && BrowserDetect.version >= 1.5)
  {
		retVal = true;
	}
	else if (BrowserDetect.browser == "Opera" && BrowserDetect.version >= 9.0)
  {
		retVal = true;
	}
	else if (BrowserDetect.browser == "Mozilla" && BrowserDetect.version >= 1.7)
  {
		retVal = true;
	}
	else if (BrowserDetect.browser == "BonEcho" && BrowserDetect.version >= 2.0)
  {
		retVal = true;
	}
	else if (BrowserDetect.browser == "SeaMonkey" && BrowserDetect.version >= 1.0)
  {
		retVal = true;
	}
	else if (BrowserDetect.browser == "Camino" && BrowserDetect.version >= 1.0)
  {
		retVal = true;
	}

  return retVal;
}