/* -----------------------------------------------------------------------*/
document.getElementsByClassName = function (className) {
    var i, j, eltClass;
    var AllObj   = document.getElementsByTagName ? document.getElementsByTagName("*") : document.all;
    var ClassObj = new Array();
    for (i = 0; i < AllObj.length; i++) {
        eltClass = AllObj[i].className.split(/\s+/);
        for (j = 0; j < eltClass.length; j++) {
            if (eltClass[j] == className) {
                ClassObj.push(AllObj[i]);
                break;
            }
        }
    }
    return ClassObj;
}
/* -----------------------------------------------------------------------*/
function AddEvent(targetObj, eventName, eventHandler) {
    if (document.addEventListener){
        targetObj.addEventListener(eventName, eventHandler, false);
        return;
    }
    if (document.attachEvent){
        targetObj.attachEvent("on"+eventName, eventHandler);
    }
}


/* -----------------------------------------------------------------------*/
// mouse_over
/* -----------------------------------------------------------------------*/
AddEvent(window, "load", function() {
    var imageObj = document.getElementsByClassName('overImg');
    for (var i=0; i<imageObj.length; i++) {
        var _set_flg = 1;
        var imageClass = imageObj[i].className.split(/\s+/);
        for (j=0; j<imageClass.length; j++) {
            if (imageClass[j] == 'open') {
                _set_flg = 0;
                break;
            }
        }
        if (_set_flg == 1){
            AddEvent(imageObj[i], "mouseover", function(){
                if (window.createPopup){
                    var ActiveObj = event.srcElement;
                }else{
                    var ActiveObj = this;
                }
                if (ActiveObj.className == "overImg"){
                    var stay = ActiveObj.src.indexOf("_stay.",0);
                    if (stay < 0){
                        var l_src = ActiveObj.src.replace(/_over.(jpg|gif)/, ".$1");
                        ActiveObj.src = l_src.replace(/\.(jpg|gif)/, "_over\.$1");
                    }
                }
                return false;
            });
            AddEvent(imageObj[i], "mouseout", function(){
                if (window.createPopup){
                    var ActiveObj = event.srcElement;
                }else{
                    var ActiveObj = this;
                }
                if (ActiveObj.className == "overImg"){
                    var stay = ActiveObj.src.indexOf("_stay.",0);
                    if (stay < 0){
                        ActiveObj.src = ActiveObj.src.replace(/_over.(jpg|gif)/, ".$1");
                    }
                }
                return false;
            });
        }
    }
});



/* -----------------------------------------------------------------------*/
// Page Top
/* -----------------------------------------------------------------------*/
function backToTop() {
  var x1 = x2 = x3 = 0;
  var y1 = y2 = y3 = 0;
  if (document.documentElement) {
      x1 = document.documentElement.scrollLeft || 0;
      y1 = document.documentElement.scrollTop || 0;
  }
  if (document.body) {
      x2 = document.body.scrollLeft || 0;
      y2 = document.body.scrollTop || 0;
  }
  x3 = window.scrollX || 0;
  y3 = window.scrollY || 0;
  var x = Math.max(x1, Math.max(x2, x3));
  var y = Math.max(y1, Math.max(y2, y3));
  window.scrollTo(Math.floor(x / 2), Math.floor(y / 2));
  if (x > 0 || y > 0) {
      window.setTimeout("backToTop()", 25);
  }
}


/* -----------------------------------------------------------------------*/
// Change Font Size
/* -----------------------------------------------------------------------*/
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);


/* -----------------------------------------------------------------------*/
// External Link
/* -----------------------------------------------------------------------*/
function externalLinks(){
if(!document.getElementsByTagName){
return;
}
var _1=document.getElementsByTagName("a");
for(var i=0;i<_1.length;i++){
var _3=_1[i];
if(_3.getAttribute("href")&&_3.getAttribute("rel")=="external"){
_3.target="_blank";
}
}
}
window.onload=externalLinks;