/**
Copyright (c)	2007, hedgehog lab limited
Licensed under terms located at http://www.getbasil.com/pages/license/
*/
function BasilLog()
{
	// These variables will be set by PHP
	var path = "http://www.uk-consoles.co.uk/basil/log/";

	// Things to record
	var now = new Date();
	var title = document.title;
	var referrer	= (window.decodeURI)?window.decodeURI(document.referrer):document.referrer;
	var page = (window.decodeURI)?window.decodeURI(document.URL):document.URL;
	var resolution = screen.width + "x" + screen.height;
	var key = new Date().getTime();
	var isUnique = getCookie('BasilUnique') ? parseInt(getCookie('BasilUnique')) : 1;

	BasilAjaxCall(path + "?page=" + escape(page) + "&referrer=" + escape(referrer) + "&title=" + escape(title) + "&resolution=" + resolution + "&isUnique=" + isUnique + "&key=" + key);

	if(isUnique == 1)
		setCookie('BasilUnique',0);
}

function BasilAjaxCall(url)
{
	  var script = document.createElement("script");
      var head = document.getElementsByTagName("head")[0];
	  script.setAttribute("type", "text/javascript");
	  script.setAttribute("src", url);
	  head.appendChild(script);
}


function addEvent(obj, type, fn ) {
	if (obj.addEventListener) {
		obj.addEventListener( type, fn, false );
		EventCache.add(obj, type, fn);
	}
	else if (obj.attachEvent) {
		obj["e"+type+fn] = fn;
		obj[type+fn] = function() { obj["e"+type+fn]( window.event ); }
		obj.attachEvent( "on"+type, obj[type+fn] );
		EventCache.add(obj, type, fn);
	}
	else {
		obj["on"+type] = obj["e"+type+fn];
	}
}

var EventCache = function(){
	var listEvents = [];
	return {
		listEvents : listEvents,
		add : function(node, sEventName, fHandler){
			listEvents.push(arguments);
		},
		flush : function(){
			var i, item;
			for(i = listEvents.length - 1; i >= 0; i = i - 1){
				item = listEvents[i];
				if(item[0].removeEventListener){
					item[0].removeEventListener(item[1], item[2], item[3]);
				};
				if(item[1].substring(0, 2) != "on"){
					item[1] = "on" + item[1];
				};
				if(item[0].detachEvent){
					item[0].detachEvent(item[1], item[2]);
				};
				item[0][item[1]] = null;
			};
		}
	};
}();

function setCookie(name, value)
{
  document.cookie = name+"="+escape(value) + "; expires=January 01, 2100 00:00:01; path=/";
}

function getCookie(name)
{
  cookie = " "+document.cookie;
  offset = cookie.indexOf(" "+name+"=");

  if (offset == -1) return undefined;

  offset += name.length+2;
  end     = cookie.indexOf(";", offset)

  if (end == -1) end = cookie.length;

  return unescape(cookie.substring(offset, end));
}
addEvent(window,'unload',EventCache.flush);
addEvent(window,'load',BasilLog);