if (document.images) {

annaion  = new Image();
annaion.src  = "images/menu_annai1.gif";
annaioff  = new Image();
annaioff.src  = "images/menu_annai0.gif";

chizuon  = new Image();
chizuon.src  = "images/menu_chizu1.gif";
chizuoff  = new Image();
chizuoff.src  = "images/menu_chizu0.gif";

ruleon  = new Image();
ruleon.src  = "images/menu_rule1.gif";
ruleoff  = new Image();
ruleoff.src  = "images/menu_rule0.gif";

shitukeon  = new Image();
shitukeon.src  = "images/menu_shituke1.gif";
shitukeoff  = new Image();
shitukeoff.src  = "images/menu_shituke0.gif";

oyadoon  = new Image();
oyadoon.src  = "images/menu_oyado1.gif";
oyadooff  = new Image();
oyadooff.src  = "images/menu_oyado0.gif";

blogon  = new Image();
blogon.src  = "images/menu_blog1.gif";
blogoff  = new Image();
blogoff.src  = "images/menu_blog0.gif";

bbson  = new Image();
bbson.src  = "images/menu_bbs1.gif";
bbsoff  = new Image();
bbsoff.src  = "images/menu_bbs0.gif";

eventon  = new Image();
eventon.src  = "images/menu_event1.gif";
eventoff  = new Image();
eventoff.src  = "images/menu_event0.gif";

}

function imgOn(imgName) {
	if (document.images) {
		document[imgName].src = eval(imgName + "on.src");
	}
}
function imgOff(imgName) {
	if (document.images) {
		document[imgName].src = eval(imgName + "off.src");
	}
}

// w 開くWindowの幅
// h 開くWindowの高さ

var cWin0 = window;

function wOpen0(url,name,w,h,flg){
  // Cookie Check
  if (cWin0 == window || cWin0.closed) {
    cWin0 = window.open(url,name,"width="+w+",height="+h+",resizable=yes,scrollbars=yes");
  } else {
    if (cWin0.location.href.indexOf(url) == -1) { cWin0.location.href = url; }
    cWin0.focus();
  }
}

window.onerror = null; 
var ie  = (navigator.appName.indexOf('Micr') != -1); 
var mac = (navigator.userAgent.indexOf('Mac') != -1 || navigator.userAgent.indexOf('mac') != -1); 
var win = (navigator.userAgent.indexOf('Win') != -1 || navigator.userAgent.indexOf('win') != -1); 
if (win) { 
if (ie) document.write('<LINK REL="STYLESHEET" HREF="jakome.css" TYPE="text/css">'); 
else document.write('<LINK REL="STYLESHEET" HREF="jakome.css" TYPE="text/css">'); 
}else{ 
if (mac) { 
if (ie) document.write('<LINK REL="STYLESHEET" HREF="jakome_mac.css" TYPE="text/css">'); 
else document.write('<LINK REL="STYLESHEET" HREF="jakome_mac.css" TYPE="text/css">'); 
}else{ 
document.write('<LINK REL="STYLESHEET" HREF="jakome.css" TYPE="text/css">'); 
} 
}