var jrreg = new Image();
  var jrkyushu = new Image();
  var jrwest = new Image();
  var jrcentral = new Image();
  var jreast = new Image();
  var jrhokkaido = new Image();

  jrreg.src = "images_ki/img_jrp_jpnMap.gif";
  jrkyushu.src = "images_ki/img_jrp_kyushu.gif";
  jrwest.src = "images_ki/img_jrp_west.gif";
  jrcentral.src = "images_ki/img_jrp_central.gif";
  jreast.src = "images_ki/img_jrp_east.gif";
  jrhokkaido.src = "images_ki/img_jrp_hokkaido.gif";

  function doButtons(picimage) {
    eval("document['picture'].src = " + picimage + ".src");
  }

//==================== hide/show price ====================
//	ns4 = (document.layers)? true:false
	ie4 = (document.all)? true:false

	function hide(id, num) {
		for (i=0; i<num; i++) {
			if (ie4) document.all[id][i].style.visibility = "hidden"
			else document.layers[id][i].visibility = "hide"
		}
	}

	function show(id, num) {
		for (i=0; i<num; i++) {
			if (ie4) document.all[id][i].style.visibility = "visible"
			else document.layers[id][i].visibility = "show"
		}
	}