/*環境変数の設定
--------------------------------------------------------------------------	*/
var agent = navigator.userAgent.toLowerCase();
var dname = new String(document.domain);
var path = new String(location.pathname);
var win = (agent.indexOf("windows") != -1);
var mac = (agent.indexOf("mac") != -1);
var w3c = document.getElementById;
var gecko = agent.indexOf("gecko") != -1;
var opera = agent.indexOf("opera",0) != -1;
var safari = agent.indexOf("safari") != -1;
var ie = agent.indexOf("msie") != -1 && !opera;
var ie5win = (agent.indexOf("msie 5.0") != -1) && win;
var ie55win = (agent.indexOf("msie 5.5") != -1) && win;
var ie6win = (agent.indexOf("msie 6.") != -1) && win;
var ie5mac = (agent.indexOf("msie") != -1) && mac;
var ns = agent.indexOf("netscape") != -1 && !opera;
var ns6 = (agent.indexOf("netscape6/6.") != -1) && ns;



/*文字サイズボタン表示＆変更維持
--------------------------------------------------------------------------	*/
function readCookie2 (id) { return (new RegExp (" " + id + "=([^;]*)")).test (" " + document.cookie) ? unescape (RegExp.$1) : null; }
function writeCookie (id, value, days, path, domain, secure) { if (days) { var d = new Date; d.setTime (d.getTime () + days * 86400000); } document.cookie = id + "=" + escape (value) + (days ? ("; expires=" + d.toGMTString ()) : "") + (path ? ("; path=" + path) : "") + (domain ? ("; domain=" + domain) : "") + (secure ? "; secure" : ""); return true; }
function deleteCookie (id, path, domain) { var r = false; if (readCookie2 (id)) { writeCookie (id, "", -1, path, domain); r = true; } return r; }


function changeFontSetting (s) { writeCookie ("CSfontsize", s, 1, "/"); }
function printFontSetting (n) { document.write ( '<ul id="fontsettings" class="right">' + '<li id="cyousei"><img src="/common/image/header_font.gif" width="98" height="44" border="0" alt="文字の大きさを調整できます。"></li>' + ((readCookie2 ("CSfontsize") == "small") ? '<li id="size_small"><a onFocus="blur()"><img src="/common/image/font_small_on.gif" alt="小" width="36" height="44"  border="0" name="s_img"></a></li>' : '<li id="size_small"><a href="javascript:location.reload ();" onclick="javascript:changeFontSetting (\'small\')" onFocus="blur()"><img name="FontSettingImage1" src="/common/image/font_small_off.gif" alt="小" width="36" height="44"  border="0" name="s_img"></a></li>') + (((readCookie2 ("CSfontsize") != "small") && (readCookie2 ("CSfontsize") != "big")) ? '<li id="size_medium"><a onFocus="blur()"><img src="/common/image/font_middle_on.gif" alt="中" width="41" height="44" border="0" name="m_img"></a></li>' : '<li id="size_medium"><a href="javascript:location.reload ();" onclick="javascript:changeFontSetting (\'middle\')" onFocus="blur()"><img name="FontSettingImage2" src="/common/image/font_middle_off.gif" alt="中" width="41" height="44" border="0" name="m_img"></a></li>') + ((readCookie2 ("CSfontsize") == "big") ? '<li id="size_large"><a onFocus="blur()"><img src="/common/image/font_big_on.gif" alt="大" width="42" height="44" border="0" name="b_img"></a></li>' : '<li id="size_large"><a href="javascript:location.reload ();" onclick="javascript:changeFontSetting (\'big\')" onFocus="blur()"><img name="FontSettingImage3" src="/common/image/font_big_off.gif" alt="大" width="42" height="44" border="0" name="b_img"></a></li>') + '</ul>'); }


function addPreloadImage () { var a = arguments; var ss = sPreloadImageUrls; for (var i = 0; i < a.length; i++) ss [ss.length] = a [i]; }
function preloadImage () { var a = arguments; var vs = a.length ? a : sPreloadImageUrls; var ss = sPreloadedImageUrls; for (var i = 0; i < vs.length; i++) ss [ss.length] = (new Image ()).src = vs [i]; }
function changeImage () { deleteRestoreImage (); var a = arguments; var os = oRestoreImages; var ss = sRestoreImageUrls; for (var i = 0; i < a.length; i += 2) { var v = a [i]; var o = (typeof (v) == "string") ? document.images [v] : v; if (o) { os [os.length] = o; ss [ss.length] = o.src; o.src = a [i + 1]; }}}
function restoreImage () { var os = oRestoreImages; var ss = sRestoreImageUrls; for (var i = os.length - 1; i >= 0; i--) os [i].src = ss [i]; deleteRestoreImage (); }
function deleteRestoreImage () { oRestoreImages = new Array (); sRestoreImageUrls = new Array (); } var sPreloadImageUrls = new Array (); var sPreloadedImageUrls = new Array (); var oRestoreImages = new Array (); var sRestoreImageUrls = new Array ();


/*ブラウザ別スタイルシートを設定する関数
--------------------------------------------------------------------------	*/
function printFontcss (n) { document.write ('<link rel="stylesheet" type="text/css" href="/common/css/size/' + "font" + ((readCookie ("CSfontsize") == "big") ? "_b" : ((readCookie ("CSfontsize") == "small") ? "_s" : "")) + '.css" media="screen,print,tv" />'); }


/*文字可変
--------------------------------------------------------------------------	*/

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;
    }
  }
  createCookie("style", title, 365);
}

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);