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: "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: "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();
	

	function ow_filterAndSendSmtpMessage(mailbox, atDomain, subject, promptString, validAnswer, sorryMsg, deobfuscateFunction) {

	    var obfuscated = deobfuscateFunction != null;
	   	if (! (BrowserDetect.version >= 7 && BrowserDetect.browser == "Explorer"))  {
		    var answer = prompt(promptString, "");
		    if (answer === null)
		    	return null;
		    if (answer != validAnswer) {
		        alert(sorryMsg);
		        return -1;
		    }
	   	}
	    ow_sendSmtpMessage(
	    	obfuscated ? deobfuscateFunction(mailbox) : mailbox, 
	    	obfuscated ? deobfuscateFunction(atDomain) : atDomain, 
	    	subject);	
	}

	// Private function
	function ow_sendSmtpMessage(mailbox, atDomain, subject) {
	    // De-obfuscate protocol in href
	    var link = ow_strrev(":otliam") + mailbox + "@" + atDomain;
	    if (subject !== null)
		link += "?subject=" + subject;
	    // Open messaging agent
	    window.location.href = link;		
	}

	// Example deobfuscating function
	function ow_strrev(str) {
	    return str.split("").reverse().join("");
	}