document.writeln('<table align=center border=0>');
document.writeln('<form name=bid_mail_query_form>');
document.writeln('<tr><td colspan=2>');
document.writeln('<input type=text name=bid_mail_no maxlength=30 size=15 style="font-family:Arial Black;" value="輸入追蹤碼" onfocus="this.value=\'\'">');
document.writeln('<tr><td><select name=bid_mail_src style="width:80px">');
document.writeln('<option value=pos>中華郵政');
document.writeln('<option value=cat>宅急便');
document.writeln('<option value=can>宅配通');
document.writeln('<option value=hct>新竹貨運');
document.writeln('<option value=tjo>大榮貨運');
document.writeln('</select>');
document.writeln('<td><input type=button value="查詢" onclick="bid_mail_query();"><br>');
document.writeln('</td></tr>');
document.writeln('</form>');
document.writeln('</table>');
function bid_mail_query()
{
   var bid_mail_query_url = 'http://bid.beingo.net/';
   var bid_fobj = document.forms['bid_mail_query_form'];
   bid_fobj.bid_mail_no.value = NumCheck(bid_fobj.bid_mail_no.value);
   if (bid_fobj.bid_mail_no.value == ''){return;}
   bid_mail_query_url = bid_mail_query_url + bid_fobj.bid_mail_src.options[bid_fobj.bid_mail_src.selectedIndex].value;
   bid_mail_query_url = bid_mail_query_url + '/' + (bid_fobj.bid_mail_no.value);
   window.open(bid_mail_query_url);
}
function NumCheck(sText)
{
	var ValidChars = "0123456789";
	var IsNumber=true;
	var Chr;
	var oText = "";
	for (i = 0; i < sText.length && IsNumber == true; i++)
	{
		Chr = sText.charAt(i);
		if (ValidChars.indexOf(Chr) != -1)
		{
			oText = oText + Chr;
		}
	}
	return oText;
}