var feedsExist;
function change_size(whatstyle,firsttime) {
 document.getElementById('small').disabled=true;
 document.getElementById('medium').disabled=true;
 document.getElementById('large').disabled=true;
 document.getElementById(whatstyle).disabled=false;
 eraseCookie('resize_fontsize');
 createCookie('resize_fontsize',whatstyle,'1');
}
function set_feedSize() {
 try {
  sizeToSet = document.location.href.split('?')[1];
  if (sizeToSet) {
     document.getElementById('small').disabled=true;
     document.getElementById('medium').disabled=true;
     document.getElementById('large').disabled=true;
     document.getElementById(sizeToSet).disabled=false;
  }
 } catch (e){}
}
function set_size_button() {
}
var current_style;
function set_size_first_time() {
try {
 if (!readCookie('resize_fontsize')) {
   document.getElementById('medium').disabled=true;
   document.getElementById('large').disabled=true;
   document.getElementById('small').disabled=false;
   current_style='small';
 } else {
   current_style=readCookie('resize_fontsize')
   change_size(current_style,'first_time');
 }
} catch (e) {}
try {
 if (readCookie('contrastToggle')) {
   document.getElementById('contrast').disabled=false;
 } else {
   document.getElementById("contrast").disabled=true;
 }
} catch (e) {}
}

if (document.getElementById('small')) {
    set_size_first_time();
}

// Cookie handling

function createCookie(name,value,hours)
{
 if (hours)
 {
  var date = new Date();
  date.setTime(date.getTime()+(hours*60*60*1000));
  var expires = "; expires="+date.toGMTString();
 }
 else var 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;
}
function eraseCookie(name)
{
 createCookie(name,"",-1);
}