var prefsLoaded = false;
var currentFontSize = 11;
var currentFontType = 1;
var currentBgColor = '#444';

function changeFontSize(sizeDifference){
	currentFontSize = parseInt(currentFontSize) + parseInt(sizeDifference);

	if(currentFontType == 1){
		if(currentFontSize > 16){
			currentFontSize = 16;
		}else if(currentFontSize < 8){
			currentFontSize = 8;
		}
	}else{
		if(currentFontSize > 19){
			currentFontSize = 19;
		}else if(currentFontSize < 8){
			currentFontSize = 8;
		}
	}
	setFontSize(currentFontSize);
}

function setFontSize(fontSize){
	var stObj = (document.getElementById) ? document.getElementById('content') : document.all('content');
	stObj.style.fontSize = fontSize + 'px';
}

function toggleSerif(){
	currentFontType = parseInt(currentFontType);
	if(currentFontType == 1){
		currentFontType = 2;
	}else{
		currentFontType = 1;
	}
	setFontFace(currentFontType);
}

function setFontFace(fontType){
	var stObj = (document.getElementById) ? document.getElementById('content') : document.all('content');
	if(fontType == 2){
		stObj.style.fontFamily = 'georgia,times,times new roman,serif';
		changeFontSize(1);
	}else{
		stObj.style.fontFamily = '\"trebuchet ms\",tahoma,verdana,geneva,arial,helvetica,sans-serif';
		changeFontSize(-1);
	}
}

function setBgColor(color) {
	if (color[0] != '#')
		color = "#222222";

	currentBgColor = color;
	document.bgColor = color;
}

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);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}

window.onload = setUserOptions;

function setUserOptions(){
	if(!prefsLoaded){
		cookie = readCookie("fontFace");
		currentFontType = cookie ? cookie : 1;
		setFontFace(currentFontType);

		cookie = readCookie("fontSize");
		currentFontSize = cookie ? cookie : 12;
		setFontSize(currentFontSize);

		cookie = readCookie("bgColor");
		currentBgColor = cookie ? cookie : '#444';
		setBgColor(currentBgColor);

		prefsLoaded = true;
	}
}

window.onunload = saveSettings;

function saveSettings()
{
  createCookie("fontSize", currentFontSize, 365);
  createCookie("fontFace", currentFontType, 365);
  createCookie("bgColor",  currentBgColor,  365);
}

function popupImage(url, x, y, scroll)
{
  ua   = window.navigator.userAgent;
  ns   = (document.layers) ? 1 : 0;
  mz   = (ua.indexOf("zilla") >= 0) ? 1 : 0;
  pcie = (ua.indexOf( "MSIE " ) >= 0 && ua.indexOf("Win") >= 0) ? 1 : 0;

  // Grrr...
  if(ns || pcie || mz) { x += 15; y += 15; }
  if(mz) { x += 10; y += 10; } 

  noise = Math.round((Math.random() * 10000) + 1);

  pictureWindow = open(url, "pictureWindow" + noise, "width=" + x + ",height=" + y + ",scrollbars=" + ((scroll) ? "yes" : "no") + ",status=no,toolbar=no,resizable=yes");

  return false;
}

/*
function correctPNG()
{
	for(var i=0; i<document.images.length; i++)
	{
		var img = document.images[i];
		var imgName = img.src.toUpperCase();
		if (imgName.substring(imgName.length-3, imgName.length) == "PNG")
		{
			var imgID = (img.id) ? "id='" + img.id + "' " : "";
			var imgClass = (img.className) ? "class='" + img.className + "' " : "";
			var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' ";
			var imgStyle = "display:inline-block;" + img.style.cssText;
			if (img.align == "left")
				imgStyle = "float:left;" + imgStyle;
			if (img.align == "right")
				imgStyle = "float:right;" + imgStyle;
			if (img.parentElement.href)
				imgStyle = "cursor:hand;" + imgStyle;

			var strNewHTML = "<span " + imgID + imgClass + imgTitle+ " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"+ "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"+ "(src=\'" + img.src + "\', sizingMethod='scale');\"></span>";
			img.outerHTML = strNewHTML;
			i = i-1;
		}
	}
}

if (window.attachEvent)
	window.attachEvent('onload',correctPNG);
*/