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;
}

function setCSS (title,reset) {
  var i, a, main;
  for (i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if (a.getAttribute("rel") && (a.getAttribute("rel").indexOf("style") != -1) && a.getAttribute("title")) {
      a.disabled = true;
      if (a.getAttribute("title") == title) a.disabled = false;
    }
  }
  if (reset == 1) createCookie("tomihata-dc",title,365);
}

function loadCSS() {
  var style = readCookie("tomihata-dc");
  if (style != null) setCSS(style,0);
}