//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: "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 setActiveStyleSheet(title) {
   var i, a, main, sf, bf;
   for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
     if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
       a.disabled = true;
       if(a.getAttribute("title") == title) a.disabled = false;
     }
   }
   setImages (title);

}

function setImages(title){
	var sf,bf;
	var x = BrowserDetect.browser;
	if (x == "Firefox"){
		var sf = document.getElementById("fontSmall");
		var bf = document.getElementById("fontLarge");
		if (title == 'SCECstandard'){
			sf.src = "../../images/fontsize/fontSmallDown.gif";
			bf.src = "../../images/fontsize/fontLargel.gif";
			return false;
		}else{
			sf.src = "../../images/fontsize/fontSmall.gif";
			bf.src = "../../images/fontsize/fontLargeDown.gif";
			return false;
		}
	}
	for (var i=0; (a = document.getElementsByTagName("img")[i]); i++){
		if (a.getAttribute("id").indexOf("font") != -1){
			var sf = document.getElementById("fontSmall");
			var bf = document.getElementById("fontLarge");
			if (title == 'SCECstandard'){
				sf.src = "../../images/fontsize/fontSmallDown.gif";
				bf.src = "../../images/fontsize/fontLargel.gif";
				return false;
			}else{
				sf.src = "../../images/fontsize/fontSmall.gif";
				bf.src = "../../images/fontsize/fontLargeDown.gif";
				return false;
			}
		}
	}
	
	//if (getElementById("fontSmall"
	/*if (title == 'SCECstandard'){
		document.getElementById("fontSmall").src = "images/fontsize/fontSmallDown.gif";
		document.getElementById("fontLarge").src = "images/fontsize/fontLargel.gif";
		return;
	}else{
		document.getElementById("fontSmall").src = "images/fontsize/fontSmall.gif";
		document.getElementById("fontLarge").src = "images/fontsize/fontLargeDown.gif";
		return;
	}*/
}

function keyp(){
  	var key = window.event ? e.keyCode : e.which;
	var keychar = String.fromCharCode(key);
	reg = /\d/;
	return !reg.test(keychar);
}






function getActiveStyleSheet() {
var i, a;
 for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
  if(a.getAttribute("rel").indexOf("style") != -1  && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
  }
  return null;
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("rel").indexOf("alt") == -1 && a.getAttribute("title")){
		return a.getAttribute("title");
	}
  }
  return null;
}

function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
	//alert (c);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}


window.onload = function(e) {
  loadStuff();
 
}

function loadStuff(){

  var cookie = readCookie("style");
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);
  setImages(title);
}


window.onunload = function(e) {
  var title = getActiveStyleSheet();
  createCookie("style", title, 365);
}

function refreshMe(){
	window.location.reload( false );
}

var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);