// Tweener Class
function Tweener(target,attr,dest,speed){
	if (typeof(this._Tweener_prototype_called) == 'undefined'){
		this._Tweener_prototype_called = true;
		Tweener.prototype.start = start;
	}

	var i = target.style[attr];
	this.attr 	= intval(i);
	this.dest 	= intval(dest);
	this.speed 	= intval(speed);
	this.accuracy = 10;
	this.start();
	
	function intval (mixed_var, base){
		var type = typeof( mixed_var );
		if (type === 'boolean'){
			return (mixed_var) ? 1 : 0;
		}else if(type === 'string'){
			tmp = parseInt(mixed_var, base || 10);
			return (isNaN(tmp) || !isFinite(tmp)) ? 0 : tmp;
		}else if(type === 'number' && isFinite(mixed_var) ){
			return Math.floor(mixed_var);
		}else{
			return 0;
		}
	}
	
	function start(){
		var myClass = this;
		var step = intval((this.dest - this.attr) / this.speed);
		this.attr += step;
		target.style[attr] = this.attr+"px";
		
		if (Math.round(step*this.accuracy)==0 || isNaN(step)){
			target.style[attr] = this.dest+"px";
		}else{
			function s(){myClass.start();}
			setTimeout(s,30);
		}
	}
}
// popup
function pop(e,attr,dest,rate){
	myTweener = new Tweener(e,attr,dest,rate);
}
// function prompter
function prompter(url){
	var prompt = confirm("You are about to enter a restricted area, you will need a password in order to enter");
	if(prompt){
		window.location = url;
	}else{
		alert("Contect us if you require access");
		startPopping();
	}
}

// browser detect
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",
			versionSearch: "Version"
		},
		{
			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"
		},
		{
			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: "Mozilla",
			identity: "Netscape",
			versionSearch: "Mozilla"
		}
	],
	dataOS : [
		{
			string: navigator.platform,
			subString: "Win",
			identity: "Windows"
		},
		{
			string: navigator.platform,
			subString: "Mac",
			identity: "Mac"
		},
		{
			   string: navigator.userAgent,
			   subString: "iPhone",
			   identity: "iPhone/iPod"
	    },
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]

};
BrowserDetect.init();
// Password protection
function pageNavi(){
	var page = ''
	page=prompt('\t\tWhat page whould you like to visit?\n(there are no options, you should know where you\'re headed)\n\n\n','');
	if (page!=null){
		location.href= '?p='+page;
	}
}