//ブラウザ情報の取得
dom = document.getElementById; //W3C DOM をサポートする場合
opera = navigator.userAgent.indexOf("Opera")>-1; //Opera
ie4 = document.all && !dom && !opera; //Internet Explorer 4.x
ie5 = document.all && dom && !opera; //Internet Explorer 5.x 以上
ie = ie4 || ie5; //Internet Explorer 4.x 以上
netscape = navigator.appName.indexOf("Netscape",0)>-1; //Netscape
nn4 = document.layers && netscape; //Netscape 4.x
nn6 = dom && netscape; //Netscape 6.x 以上

//地図画像ファイル名（通常の拡大画像）
expand_pic_array = new Array("","pic1_expand.jpg","pic2_expand.jpg","pic3_expand.jpg","pic4_expand.jpg","pic5_expand.jpg","pic6_expand.jpg","pic7_expand.jpg");
//レイヤーサイズ
//[[ダミー, width1, ...], [ダミー, height1, ...]]
//（通常の拡大画像）
expand_pic_size_array = [[0,444,444,444,444,444,444,444],[0,546,682,663,443,367,473,608]];

//地図画像ファイル名（更なる拡大画像）
more_expand_pic_array = new Array("","pic1_more_expand.jpg","pic7_more_expand1.jpg","pic7_more_expand2.jpg");
//レイヤーサイズ
//[[ダミー, width1, ...], [ダミー, height1, ...]]
//（更なる拡大画像）
more_expand_pic_size_array = [[0,444,444,444],[0,294,422,322]];

//吹き出しの矢印の表示位置
//[[ダミー, top1, top2, ...], [ダミー, left1, left2, ...]]
arrow_array = [[0,210,310,290,280,350,380,450],[0,155,50,110,200,200,110,110]];
//地図画像ファイル名
pic_fname_all = new Array("pic1_expand.jpg","pic1_more_expand.jpg","pic2_expand.jpg","pic3_expand.jpg","pic4_expand.jpg","pic5_expand.jpg","pic6_expand.jpg","pic7_expand.jpg","pic7_more_expand1.jpg","pic7_more_expand2.jpg");

//拡大可能範囲枠
more_expand_area_array = new Array("barrow.png","pic_scope1.png","pic_scope2.png","pic_scope3.png");

//表示画像Noフラグ
flag = 0;