function checkFrm(frmObj){
	if(frmObj.First_Name.value==""){
		alert("Please enter your First Name!!");
		frmObj.First_Name.focus();
		return false;
	}

	if(frmObj.Last_Name.value==""){
		alert("Please enter your Last Name!!");
		frmObj.Last_Name.focus();
		return false;
	}
	
	if(frmObj.Email.value==""){
		alert("Please enter your E-Mail!!");
		frmObj.Email.focus();
		return false;
	}else if(!checkMail(frmObj.Email.value)){
		alert("Incorrect E-Mail!!");
		frmObj.Email.focus();
		return false;
	}
	
	if(frmObj.total.value!=""){
		if(isNaN(frmObj.total.value)){
			alert("Total number of text pages should be a number!!");
			frmObj.total.focus();
			return false;
		}
	}
	
	frmObj.submit();
}

function checkFrm2(frmObj){
	if(frmObj.Contact.value==""){
		alert("請輸入聯絡人");
		frmObj.Contact.focus();
		return false;
	}

	if(frmObj.Email.value==""){
		alert("請輸入電子郵件地址");
		frmObj.Email.focus();
		return false;
	}else if(!checkMail(frmObj.Email.value)){
		alert("電子郵件地址錯誤");
		frmObj.Email.focus();
		return false;
	}
	
	frmObj.submit();
}

function checkMail(inEmail)
{
	var x = inEmail;
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (filter.test(x)) return true;
	else return false;
}

function changeLang(lang){
//	alert(location.href.toString());
//	if(location.href.toString().search('/print.php')!=-1){
//		alert("此頁內容並未提供英文版");
//	}else{
		if(lang=='chi'){
//			document.location = location.href.toString().replace('/en/', '/'+lang+'/');
			document.location = '/'+lang+'/aboutus.php';
		}else{
//			document.location = location.href.toString().replace('/chi/', '/'+lang+'/');
			document.location = '/'+lang+'/aboutus.php';
		}
//	}
}