//	Adapted from the rather splendid


var d = 'i/';
var ext = '.png';

var imageObjects = [];
var currImage = 0;

function preLoadImages()
{


	var loadingMessage = document.getElementById("loadingMessage");
	var loadingMessageP = loadingMessage.getElementsByTagName("p")[0];
	
	if (currImage >= imageArray.length)
	{
		loadingMessageP.innerHTML = "<strong>DONE!</strong>";
		
		if(!document.getElementById("startButton")) {
		var buttonStart = document.createElement("input");
		buttonStart.type = "image";
		buttonStart.src = "i/start.png";
		buttonStart.id = "startButton";
		buttonStart.onclick = initGame;
		loadingMessage.appendChild(buttonStart)
		};

		var loadingBar = loadingMessage.getElementsByTagName("div")[1];
		loadingBar.style.width = "0%";

	}
	else
	{
		imageObjects[currImage] = new Image();
		imageObjects[currImage].onload = preLoadImages;
		imageObjects[currImage].src = imageArray[currImage] + "?" + Math.random();
		
		loadingMessageP.innerHTML = "Loading image <strong>" + (currImage + 1) + "</strong> of <strong>" + imageArray.length + "</strong>";

		var loadingBar = loadingMessage.getElementsByTagName("div")[1];
		loadingBar.style.width = Math.ceil((currImage + 1) / imageArray.length * 100) + "%";

		currImage++;
	}
	
	return true;
};


function identifyBrowser() {
  var agent = navigator.userAgent.toLowerCase();

  if (typeof navigator.vendor != "undefined" && navigator.vendor == "KDE" &&
      typeof window.sidebar != "undefined")
  {
    return "kde";
  }
  else if (typeof window.opera != "undefined")
  {
    var version = parseFloat(agent.replace(/.*opera[\/ ]([^ $]+).*/, "$1"));

    if (version >= 7)
    {
      return "opera7";
    }
    else if (version >= 5)
    {
      return "opera5";
    }

    return false;
  }
  else if (typeof document.all != "undefined")
  {
    if (typeof document.getElementById != "undefined")
    {
      var browser = agent.replace(/.*ms(ie[\/ ][^ $]+).*/, "$1").replace(/ /, "");

      if (typeof document.uniqueID != "undefined")
      {
        if (browser.indexOf("5.5") != -1)
        {
          return browser.replace(/(.*5\.5).*/, "$1");
        }
        else
        {
          return browser.replace(/(.*)\..*/, "$1");
        }
      }
      else
      {
        return "ie5mac";
      }
    }

    return false;
  }
  else if (typeof document.getElementById != "undefined")
  {
    if (navigator.vendor.indexOf("Apple Computer, Inc.") != -1)
    {
      if (typeof window.XMLHttpRequest != "undefined")
      {
        return "safari1.2";
      }

      return "safari1";
    }
    else if (agent.indexOf("gecko") != -1)
    {
      return "mozilla";
    }
  }
  return false;
}