/*************************************************************************
	Globals with results
**************************************************************************/
var OSVer;
var OSSupported = false;
var IsWin = false;
var IsMAC = false;

var BrowserName, BrowserVersion;
var BrowserSupported= false;
/**********************************************************************************
	Suporting functions,
**********************************************************************************/
function getOperatingSystemVersion()
{
	var UserAgent;
	OSSupported = false;
	try
	{
		(typeof(navigator.userAgent) != "undefined") ? UserAgent = navigator.userAgent : UserAgent = "Property not supported or blank!";
		if(UserAgent.indexOf("Windows NT 6.1") > -1)
		{
			if((UserAgent.indexOf("WOW64") > -1) || (UserAgent.indexOf("Win64") > -1))
			{
				OSSupported = true;
				OSVer = "Windows 7 64 bit";
			}
			else
			{
				OSSupported = true;
				OSVer = "Windows 7";
			}
			IsWin = true;
		}
		else if(UserAgent.indexOf("Windows NT 6.0") > -1)
		{
			if(UserAgent.indexOf("WOW64") > -1)
			{
				OSSupported = true;
				OSVer = "Windows Vista 64 bit";
			}
			else
			{
				OSSupported = true;
				OSVer = "Windows Vista";
			}
			IsWin = true;
		}
		else if(UserAgent.indexOf("NT 5.2") > -1)
		{
			OSSupported = true;
			OSVer = "Windows 2003";
			IsWin = true;
		}
		else if(UserAgent.indexOf("Windows NT 5.1") > -1)
		{
			OSSupported = true;
			OSVer = "Windows XP";
			IsWin = true;
		}
		else if(UserAgent.indexOf("Windows NT 5.0") > -1)
		{
			OSVer = "Windows 2000";
			IsWin = true;
		}
		else if(UserAgent.indexOf("Windows 98") > -1)
		{
			OSVer = "Windows 98";
			IsWin = true;
		}
		else if(UserAgent.indexOf("Windows 95") > -1)
		{
			OSVer = "Windows 95";
			IsWin = true;
		}
		else if(UserAgent.indexOf("Mac OS X") > -1)
		{
			OSSupported = true;
			OSVer = "Mac OS X";
			IsMAC = true;
		}
		else if(UserAgent.indexOf("Macintosh") > -1)
		{
			OSVer = "Mac OS";
			IsMAC = true;
		}
		else if(navigator.appVersion.indexOf("X11")!=-1)
		{
			OSVer = "Unix";
		}
		else if (navigator.appVersion.indexOf("Linux") != -1)
		{
			OSVer = "Linux";
		}
		else 
		{
			OSVer = "Unknown";
		}
		
		return OSVer;
	}
	catch(e)
	{
		OSVer = "Unknown";
	}
}


function getBrowserMinorVersion()
{
	var OSMinorVer;
	(typeof(navigator.appMinorVersion) != "undefined") ? OSMinorVer = navigator.appMinorVersion : OSMinorVer = "Property not supported or blank!";
	return OSMinorVer;
}


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";
	},
	
	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: "Chrome",
			identity: "Chrome"
		},
		{ 
			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: "Navigator",
			identity: "Navigator"
		},
		{
			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"
		}
	]

};


function OSCheck()
{
	getOperatingSystemVersion();
	return OSSupported;
}

function BrowserCheck()
{
	OSCheck();
	BrowserDetect.init();

	BrowserName = 	BrowserDetect.browser;
	BrowserVersion = 	BrowserDetect.version;
	if(!OSSupported)	return false;
	
	
	BrowserSupported = 	((BrowserName == 'Firefox') && (BrowserVersion >= 3.0) && (IsWin)) || 
						((BrowserName == 'Explorer') && (BrowserVersion >= 7.0) && (IsWin)) ||
						((BrowserName == 'Chrome') && (BrowserVersion >= 3.0) && (IsWin)) || 
						((BrowserName == "Safari") && (BrowserVersion >= 4.0) && (IsMAC))	||
						((BrowserName == "Firefox") && (BrowserVersion >= 3.0) && (IsMAC));
	return BrowserSupported;
}