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

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

function setFontsizeStyleSheet(title) {
disableFontsizeStyleSheets()
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		 		if (a.getAttribute("title")) {

    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title").indexOf("font") != -1 && a.getAttribute("title") == title) {
			 a.disabled = false;
				}
			 }
			 }

}
function setColourStyleSheet(title) {
disableColourStyleSheets()
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		 		if (a.getAttribute("title")) {

    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title").indexOf("colour") != -1 && a.getAttribute("title") == title) {
		 a.disabled = false;
			}
    }
  }
}

function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		 		if (a.getAttribute("title")) {

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

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

   if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title").indexOf("colour") != -1 && !a.disabled) return a.getAttribute("title");
  }
}
  return null;
}

function getPreferredFontsizeStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
 		 		if (a.getAttribute("title")) {

   if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title").indexOf("font") != -1 
	)
	return a.getAttribute("title");
}  }
  return null;
}
function getPreferredColourStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
 		 		if (a.getAttribute("title")) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title").indexOf("colour") != -1 
       ) 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);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return false;
}

function setFontsize() {
	var Fontsizetitle = (Fontsizecookie)?Fontsizecookie:"font_default";
	setFontsizeStyleSheet(Fontsizetitle)
}
function setColoursize() {
	var Colourtitle = (Colourcookie)?Colourcookie:"colour_default";
	setColourStyleSheet(Colourtitle)
}

window.onunload = function(e) {
  var Fontsizetitle = (getFontsizeStyleSheet())?getFontsizeStyleSheet():Fontsizecookie;
  var Colourtitle = (getColourStyleSheet())?getColourStyleSheet():Colourcookie;
  createCookie("fontsizestyle", Fontsizetitle, 365);
  createCookie("colourstyle", Colourtitle, 365);
}
var Fontsizecookie = readCookie("fontsizestyle");
var Colourcookie = readCookie("colourstyle");
disableFontsizeStyleSheets()
disableColourStyleSheets()

if (navigator.appName.indexOf("Netscape") >= 0) {
setTimeout("setFontsize()",200);
setTimeout("setColoursize()",200);
} else {
setFontsize()
setColoursize()
}