var navAge = navigator.userAgent
var browserVer = navigator.appVersion.charAt(0);
var myCount = 0;
var roadFlag = 0;
var currentPage = "blank";

if (browserVer >= 3) {
	tsuribune_on = new Image();
	tsuribune_on.src = "../navi_img/bu_tsuribune_d.jpg";
	tsuribune_off = new Image();
	tsuribune_off.src = "../navi_img/bu_tsuribune_n.jpg";
	//
	yakatabune_on = new Image();
	yakatabune_on.src = "../navi_img/bu_yakatabune_d.jpg";
	yakatabune_off = new Image();
	yakatabune_off.src = "../navi_img/bu_yakatabune_n.jpg";
	//
	access_on = new Image();
	access_on.src = "../navi_img/bu_accessmap_d.jpg";
	access_off = new Image();
	access_off.src = "../navi_img/bu_accessmap_n.jpg";
	//
	info_on = new Image();
	info_on.src = "../navi_img/bu_info_d.jpg";
	info_off = new Image();
	info_off.src = "../navi_img/bu_info_n.jpg";
	//
	staff_on = new Image();
	staff_on.src = "../navi_img/bu_staff_d.jpg";
	staff_off = new Image();
	staff_off.src = "../navi_img/bu_staff_n.jpg";
	//
}


function actOn(imgName)  {
	if (browserVer >= 3)   {
		onImg = eval(imgName + "_on.src");
		document [imgName].src = onImg;
	}
}

function actOff(imgName)   {
	if (browserVer >= 3) {
		offImg = eval(imgName + "_off.src");
		document [imgName].src = offImg;
	}
}