var picwin = window;



function pic_win(url) {
   if ((picwin == window) || picwin.closed) {
      picwin = open("time_table.html?"+url, "view_win","width=500,height=500");
	picwin.focus();
   } else {
//      picwin.close();
	picwin = open("picture_window.html?"+url, "view_win","width=300,height=300");
	picwin.focus();
   }

}


function pic_bigwin(url) {
   if ((picwin == window) || picwin.closed) {
      picwin = open("map.html?"+url, "view_win","width=600,height=600");
	picwin.focus();
   } else {
//      picwin.close();
	picwin = open("picture_window.html?"+url, "view_win","width=520,height=520");
	picwin.focus();
   }

}



function pic_longwin(url) {
   if ((picwin == window) || picwin.closed) {
      picwin = open(url, "view_win","width=620,height=760");
	picwin.focus();
	} else {
//      picwin.close();
	picwin = open("picture_window.html?"+url, "view_win","width=620,height=760");
	picwin.focus();
   }

}