function setStyle() {
var style = readCookie("wstyle");
if (style != null) {
setActiveStyleSheet(style, 0);
}
else {
setActiveStyleSheet("default",1);
}
}


function setActiveStyleSheet(title, store) {
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;
}
}
if (store == 1) {
createCookie("wstyle", title, 365);
}
} 


function increaseTextSize(){
  var a;
  a = getActiveStyleSheet();
  if(a == "smallerText"){
    setActiveStyleSheet("default", 1);
  }
  else if (a == "default"){
    setActiveStyleSheet("largerText", 1);
  }
  else if (a == "largerText"){
    setActiveStyleSheet("largestText", 1);
  }
}
  
function decreaseTextSize(){
  var a;
  a = getActiveStyleSheet();
  if(a == "largestText"){
    setActiveStyleSheet("largerText", 1);
  }
  else if (a == "largerText"){
    setActiveStyleSheet("default", 1);
  }
  else if (a == "default"){
    setActiveStyleSheet("smallerText", 1);
  }
}
  


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 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+"; domain=casscoa.org;";
}

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;
}