function showDetailArea(roomid, img_cd, d_mode) {
	var a = new Ajax.Updater(
				"detail_image",
				"/oekakichat/app/oekakibbs/ShowDetail",
				{
					"method" : "get",
					"parameters" : "roomid=" + encodeURIComponent(roomid) + "&img_cd=" + encodeURIComponent(img_cd) + "&d_mode=" + encodeURIComponent(d_mode),
					onSuccess: function(request) {
					},
					onComplete: function(request) {
					},
					onFailure: function(request) { 
					},
					onException: function (request) {
					}
				}
			);
}