if (form.m_zip.value.length!=0) { 
	  if (!form.m_zip.value.match(/[0-9]{3}$/) ) {
		   alert( "<br />
<b>Warning</b>:  Undefined variable $lang in <b>/home/ae5okwebasia/public_html/program/webfiles/ecpay拷貝/checkinput/checkm_zip.php</b> on line <b>3</b><br />
<br />
<b>Warning</b>:  Attempt to read property "mustNumber" on null in <b>/home/ae5okwebasia/public_html/program/webfiles/ecpay拷貝/checkinput/checkm_zip.php</b> on line <b>3</b><br />
") 
	 		form.m_zip.focus();
	 		return false; 
		}
	}