if (document.images) {

contact_off = new Image();contact_off.src = 'img2/contact_off.gif';
office_off = new Image();office_off.src = 'img2/office_off.gif';
site_off = new Image();site_off.src = 'img2/site_off.gif';
conver_off = new Image();conver_off.src = 'img2/conver_off.gif';
home_off = new Image();home_off.src = 'img2/home_off.gif';
japanese_off = new Image();japanese_off.src = 'img2/japanese_off.gif';

link_off = new Image();link_off.src = 'topimg/link_off.gif';
terms_off = new Image();terms_off.src = 'topimg/terms_off.gif';
privacy_off = new Image();privacy_off.src = 'topimg/privacy_off.gif';
policy_s_off = new Image();policy_s_off.src = 'topimg/policy_s_off.gif';
print_off = new Image();print_off.src = 'topimg/print_off.gif';
book_off = new Image();book_off.src = 'topimg/book_off.gif';

about_off = new Image();about_off.src = 'topimg/about_off.gif';
busi_off = new Image();busi_off.src = 'topimg/busi_off.gif';
ir_off = new Image();ir_off.src = 'topimg/ir_off.gif';
ja_off = new Image();ja_off.src = 'topimg/ja_off.gif';

contact_on = new Image();contact_on.src = 'img2/contact_on.gif';
office_on = new Image();office_on.src = 'img2/office_on.gif';
site_on = new Image();site_on.src = 'img2/site_on.gif';
conver_on = new Image();conver_on.src = 'img2/conver_on.gif';
home_on = new Image();home_on.src = 'img2/home_on.gif';
japanese_on = new Image();japanese_on.src = 'img2/japanese_on.gif';

link_on = new Image();link_on.src = 'topimg/link_on.gif';
terms_on = new Image();terms_on.src = 'topimg/terms_on.gif';
privacy_on = new Image();privacy_on.src = 'topimg/privacy_on.gif';
policy_s_on = new Image();policy_s_on.src = 'topimg/policy_s_on.gif';
print_on = new Image();print_on.src = 'topimg/print_on.gif';
book_on = new Image();book_on.src = 'topimg/book_on.gif';

about_on = new Image();about_on.src = 'topimg/about_on.gif';
busi_on = new Image();busi_on.src = 'topimg/busi_on.gif';
ir_on = new Image();ir_on.src = 'topimg/ir_on.gif';
ja_on = new Image();ja_on.src = 'topimg/ja_on.gif';
}
function di(id,name){
  if (document.images) {document.images[id].src=eval(name+".src"); }
}



	function printWindow(){
		if (window.print){
			window.print();
		} else {
			alert("Your browser does not correspond.");
		}
	}


function bookmark(){
	if (navigator.userAgent.indexOf("Mac")!=-1){
alert("Your browser does not correspond.");
		} else if(document.all && !window.opera){
			window.external.AddFavorite(location.href,document.title);
		} else {
			alert("Your browser does not correspond.");
		}
	}


<!--
var HELPWin=null;//サブウインドウ
var HELPHref1="";//読み込むページ
function HelpWinOpen(HELPHref1,WinNo,W,H){
HELPWin=window.open(HELPHref1,WinNo,'toolbar=1,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1,width='+W+',height='+H+'');

//N2.0バグ回避用リピート
if(navigator.appVersion.charAt(0)==2){
HELPWin=window.open(HELPHref1,WinNo,'toolbar=1,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1,width='+W+',height='+H+'');}

//サブウインドウが開いたとき前面へフォーカスする。NN3.0~
if(navigator.appVersion.charAt(0)>=3){HELPWin.focus()}
};
//-->