func Begin(){
	Trace = 1;
	Record = 1;
	Done = 0;
	Done1 = 0;
}
func OnLineHeader(){
	ntrc = LH.NumTrc;
	nsamp = LH.NumSmp;
	LH.NumRec = 1062;
	output(LH);
}
func OnTrace(){
	if ( Tr.RecNum == 417 && Done == 0 ) {

                YT = Tr; /*assign trace to temporary trace */

			Tr.Series[0:nsamp-1]=0.0;  /* zero the trace data */
			Tr.StaCor = 30000;
			Tr.RecNum = 416;
		
		for(i=1;i<ntrc+1;i++){
			Tr.TrcNum = i;
			output(Tr);     /* output zero trace */
		}

		Tr = YT;  /* reload YT into trace */
		Done = 100;
	}
	if ( Tr.RecNum == 589 && Done1 == 0 ) {

                YT = Tr; /*assign trace to temporary trace */

			Tr.Series[0:nsamp-1]=0.0;  /* zero the trace data */
			Tr.StaCor = 30000;
			Tr.RecNum = 588;
		
		for(i=1;i<ntrc+1;i++){
			Tr.TrcNum = i;
			output(Tr);     /* output zero trace */
		}

		Tr = YT;  /* reload YT into trace */
		Done1 = 100;
	}
	output(Tr);   /* output trace data */
}