var winopts = "toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=yes,resizable=no,height=500,width=300,copyhistory=0," 

var smallwindow = null;

function historywin(filename) {
 fileURL=filename;
  if (parseInt(navigator.appVersion) < 4) {
   if (smallwindow != null) smallwindow.close();
 }
 timerID= setTimeout('Opener(fileURL)',100);
 				}

function Opener(winname){
 filename = winname;
 winname = "historywin"
 smallwindow = window.open(filename,winname,winopts)
 if( navigator.appVersion.indexOf("(X11") != -1 || navigator.appVersion.indexOf("(Mac") != -1)
	 smallwindow = window.open(filename,winname,winopts)
 if( navigator.appVersion.indexOf("MSIE") == -1 )
	 smallwindow.mainWin = this;
	 WindowFocus();
 }
 
 function WindowFocus(){
 if( navigator.appVersion.indexOf("2.") == -1 && navigator.appVersion.indexOf("MSIE") == -1 )
 smallwindow.focus();
}