function chkInput(f)
{
	if (noKeyIn(f.inquiry_name, "Please input your name.")){return false;}
	if (noKeyIn(f.inquiry_email, "Please input your Email.")){return false;}
	//if (noKeyIn(f.inquiry_phone, "Please input your phone number.")){return false;}
	if (noKeyIn(f.capt, "Please input the authentication code.")){return false;}
}
function noKeyIn(input, ErrorMsg)
{
	if (input.value=="")
   	{
     	input.focus();
     	alert(ErrorMsg);
     	return true;
    }
	return false;
}