var ver4 = (navigator.appVersion.charAt(0) >= "4");
var NN4  = ver4 && (navigator.appName == "Netscape");
var IE4 = ver4 && (navigator.appName.charAt(0) == "M");
var NN3 = ((navigator.appVersion.charAt(0) == "3") && (navigator.appName == "Netscape"));

function In(nam,num) {
        if(NN3 || NN4 || IE4) document.images[nam].src = menu[num].src;
}
function Out(nam,num) {
        if(NN3 || NN4 || IE4) document.images[nam].src = menu[num].src;
}    

if(NN3 || NN4 || IE4){
        var menu = new Array();
        menu[0] = new Image();  menu[0].src = "../images/menu_top_a.gif";
        menu[1] = new Image();  menu[1].src = "../images/menu_top.gif";
        menu[2] = new Image();  menu[2].src = "../images/menu_oshinagaki_a.gif";
        menu[3] = new Image();  menu[3].src = "../images/menu_oshinagaki.gif";
        menu[4] = new Image();  menu[4].src = "../images/menu_yoyaku_a.gif";
        menu[5] = new Image();  menu[5].src = "../images/menu_yoyaku.gif";
        menu[6] = new Image();  menu[6].src = "../images/menu_chizu_a.gif";
        menu[7] = new Image();  menu[7].src = "../images/menu_chizu.gif";
        menu[8] = new Image();  menu[8].src = "../images/menu_fucha_a.gif";
        menu[9] = new Image();  menu[9].src = "../images/menu_fucha.gif";
        menu[10] = new Image();  menu[10].src = "../images/menu_english_a.gif";
        menu[11] = new Image();  menu[11].src = "../images/menu_english.gif";
}
function new_window2(url){
	if(url !='')
	{
	window.open(url,"","toolbar=0,menubar=0,scrollbars=auto,width=550,height=600");
	}
}