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"
		},
		{ 		// 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();


var ie4up = (document.all) ? 1 : 0;
var ns6up = (document.getElementById&&!document.all) ? 1 : 0;


function iect() 
{
	return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function getClientHeight() 
{

if (window.innerHeight)
	{ /* NN4 a kompatibilní prohlížeče */      
      return window.innerHeight;
	}
   else if   
   (document.documentElement &&
   document.documentElement.clientHeight)
   {  /* MSIE6 v std. režimu  */   
      return document.documentElement.clientHeight;
   }
   else if
   (document.body && document.body.clientHeight)
   {
      /* starší MSIE + MSIE6 v quirk režimu */
      return document.body.clientHeight;
   }
   else
   {
      return null;
   }
}

function getClientWidth() 
{

if (window.innerWidth)
	{ /* NN4 a kompatibilní prohlížeče */      
      return window.innerWidth;
	}
   else if   
   (document.documentElement &&
   document.documentElement.clientWidth)
   {  /* MSIE6 v std. režimu  */   
      return document.documentElement.clientWidth;
   }
   else if
   (document.body && document.body.clientWidth)
   {
      /* starší MSIE + MSIE6 v quirk režimu */
      return document.body.clientWidth;
   }
   else
   {
      return null;
   }
}