//Requires in-line "addEvent" function !!

function setActiveStyleSheet(title) {
  var i, a, main;
  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;
    }
  }
}

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,path,domain,secure) {
  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 + "=" + escape(value) +
    ((expires) ? "; expires=" + expires : "") +
    ((path) ? "; path=" + path : "") +
    ((domain) ? "; domain=" + domain : "") +
    ((secure) ? "; secure" : "");
}

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;
}

resizeControl = function(e) {   //object requires an "onload" event handler call
  var cookie = readCookie("style");
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);
  if(document.getElementById){
    document.getElementById('textSize').style.visibility="visible"  //show controls only with compatible browsers
  }
  else if (document.getElementsByTagName) {
    textSize.style.visibility="visible"
  }
}

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

addEvent(window,'onload', resizeControl);