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;
    }
  }
bnsButtonchanger(title);
}

function bnsButtonchanger(title){
try{
	if(title!=null){
		document.getElementById('img_big').src="http://www.aic-co.jp/common/img/font_big.gif";
		document.getElementById('img_normal').src="http://www.aic-co.jp/common/img/font_normal.gif";
		document.getElementById('img_small').src="http://www.aic-co.jp/common/img/font_small.gif";
		document.getElementById('img_' + title).src="http://www.aic-co.jp/common/img/font_" + title + "_on.gif";
	};
}catch(e){
};
}



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");
if(cookie==null){cookie='normal'};
var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);

bnsButtonchanger(cookie);



	dd = new Date();
	vYear = (dd.getYear()+1900);
	if(vYear>3000){vYear=dd.getYear();};
	document.getElementById('copyright').innerHTML = 'Copyright 2002-' + vYear + ', AIC CORPORATION All Rights Reserved';



}

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

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