function number(x) {
if (x==1) return "one"; if (x==2) return "two"; if (x==3) return "three";
if (x==4) return "four"; if (x==5) return "five"; if (x==6) return "six";
if (x==7) return "seven"; if (x==8) return "eight"; if (x==9) return "nine";
if (x==10) return "ten"; if (x==11) return "eleven"; if (x==12) return "twelve";
return x; //default
}
function ishtime(h,m) {
h = number(h)
if (m<=3 || m>57) return h+" o'clock";
if (m<=7)  return "five past "+h;
if (m<=12) return "ten past "+h;
if (m<=17) return "quarter past "+h;
if (m<=23) return "twenty past "+h;
if (m<=28) return "twenty-five past "+h;
if (m<=33) return "half past "+h;
if (m<=38) return "twenty-five to "+h;
if (m<=43) return "twenty to "+h;
if (m<=48) return "quarter to "+h;
if (m<=53) return "ten to "+h;
if (m<=58) return "five to "+h;
return "h:m"; // never reached?
}
function daytime(h) {
if (!h || h>21) return " at night"
if (h<12) return " in the morning";
if (h<=17) return " in the afternoon";
return " in the evening"; // default
}
function ish(h,m) {
if (!h && !m) { // if no time supplied, use the system time
time = new Date()
h = time.getHours()
m = time.getMinutes()
}
z = daytime(h);
h = h % 12 // fix to 12 hour clock
if (m>57 && time.getSeconds()>30) m++; // round seconds
if (m>60) m=0 // round up minutes
if (m>33) h++ // round up hours
if (h>12)  h = 1 // the clock turns round..
if (h==0) h = 12
return "It's about "+ishtime(h,m)+z+"."
}

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) {
  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 = function(e) {
  var cookie = readCookie("style");
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);
}

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

var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);