/* ¿ÀÇ À©µµ¿ì °øÅëó¸® ½ºÅ©¸³Æ® */
var popup_window = null;
function popup(url, ws, hs, scroll)
{
	var sbar = scroll;
	var left = (screen.width * 1/2) - ws/2;
	var top  = (screen.height* 1/2) - hs/2;

	if (sbar != "no") { sbar = "yes"; }

	var features =
		"width=" + ws + ",height=" + hs +
		",left=" + left + ",top=" + top +",scrollbars=" + sbar + ",resizable=no";

	if (popup_window && !popup_window.closed) {
		popup_window.close();
	}

	popup_window = window.open(url, "", features);

	popup_window.focus();
}