function checkEmail(ob){
	ob.value=ob.value.replace(" ","");
	ob.value=ob.value.replace(" ","");
	ob.value=ob.value.replace(" ","");
	ob.value=ob.value.replace(" ","");
	ob.value=ob.value.replace(" ","");
	ob.value=ob.value.replace("~","");	
	ob.value=ob.value.replace("!","");	
	ob.value=ob.value.replace("#","");		
	ob.value=ob.value.replace("$","");
	ob.value=ob.value.replace("%","");
	ob.value=ob.value.replace("^","");
	ob.value=ob.value.replace("&","");
	ob.value=ob.value.replace("*","");
	ob.value=ob.value.replace("(","");
	ob.value=ob.value.replace(")","");
	return true;
}


function vldemail(ob) {
	if (ob.value.indexOf("@")==-1) {
		ErrMsg = ErrMsg+"您的email格式有誤!\n";
		ob.select();
		return false;		
	} else if (ob.value.indexOf(".")==-1) {
		ErrMsg = ErrMsg+"您的email格式有誤!\n";
		ob.select();
		return false;
	}
	return true; 
}

function checkdata_fw() {
	ErrMsg = "";
	if(document.fw.rname.value=="")	{
		ErrMsg = ErrMsg+"請輸入 好友稱呼!\n";
	}
	if(document.fw.remail.value=="")	{
		ErrMsg = ErrMsg+"請輸入 好友email!\n";
	}else{
		vldemail(document.fw.remail);
		checkEmail(document.fw.remail);
	}
	if(document.fw.rname.value=="")	{
		ErrMsg = ErrMsg+"請輸入 您的稱呼!\n";
	}
	if(ErrMsg!="")	{
		alert(ErrMsg);
		return false;
	}
	else {
		return true;
	}
}


function checkdata_sc() {
	ErrMsg = "";
	if(document.form1.score[0].checked || document.form1.score[1].checked || document.form1.score[2].checked || document.form1.score[3].checked)	{

	} else {
		ErrMsg = ErrMsg+"請選擇您的評價!\n";
	}
	if(ErrMsg!="")	{
		alert(ErrMsg);
		return false;
	}
	else {
		return true;
	}
}


function checkdata_fb() {
	ErrMsg = "";
	if(document.form2.comment.value=="")	{
		ErrMsg = ErrMsg+"請輸入 您的建議!\n";
	} else {
		if(document.form2.comment.value.length>40) { ErrMsg = ErrMsg+"抱歉 建議需在40字以內!\n"; }
	}

	if(ErrMsg!="")	{
		alert(ErrMsg);
		return false;
	}
	else {
		return true;
	}
}