ขอสอบถามหน่อยคะ ถ้าเราอยากให้ตัวหนังสือเลื่อนตามจำนวนของข้อมความต้องใช้เงื่อไขอะไรหรอคะ

$Lc = 0;
		if($USER_CONTROL == "ocean_outbound" or $USER_CONTROL == "ocean_inbound"){
			$Y  =$Y + 6;
			$this->Text(5 , $Y , 'CONT./SEAL');
			$this->Line(7 + $XT1 , $Y + 1 , 203 , $Y + 1);
			$Lc = $this->SplitLine(': '.$ContainerNo , -($this->GetStringWidth(': ')) , 195 - $XT1 , 6 , 5 + $XT1 + $this->GetStringWidth(': ') , $Y) + 1;
    
		}

function HeadMaster($Y){

		global $MasterImEx;
		$this->SetFont('Arial','BU',8);
		$this->Text(5 , $Y , 'JOB NO');
		if($MasterImEx == "Export"){
			$this->Text(27 , $Y , 'SHIPPER');
			$this->Text(57 , $Y , 'CONSIGNEE');
		}else{
			$this->Text(27 , $Y , 'CONSIGNEE');
			$this->Text(57 , $Y , 'SHIPPER');
		}
		$this->Text(90 , $Y , 'VOLUM');
		$this->Text(115 , $Y , 'REVENUE');
		$this->Text(144 , $Y , 'COST');
		$this->Text(177 - $this->GetStringWidth('DB/CR') , $Y , 'DB/CR');
		//$this->Text(187 - $this->GetStringWidth('EXTRA') , $Y , 'EXTRA');
		$this->Text(203 - $this->GetStringWidth('PROFIT') , $Y , 'PROFIT');
		
		$Y = $Y + 4.5;
		
		
		return $Y;
       
	}
}