function openWindow(a,nm) { //v3.0
	// var win=window.open(a,"newwin","width=" + w + ",height=" + h,scrollbars="yes") ; 
	if(!win_closed(window.win1)) win1.close();
	win = window.open(a,"",'width=621,height=641,titlebar=0,menubar=0,toolbar=0,location=0,scrollbars=0,status=0,directories=0,fullscreen=0,resizable=1') ;
}
function win_closed(winVar) {
   var ua = navigator.userAgent
	if( !!winVar )
		if( ( ua.indexOf('Gecko')!=-1 || ua.indexOf('MSIE 4')!=-1 )
             && ua.indexOf('Win')!=-1 ) 
			return winVar.closed
		else return typeof winVar.document  != 'object'
	else return true
}