function Trim(TRIM_VALUE){
	if(TRIM_VALUE.length < 1){
		return"";
	}
	TRIM_VALUE = RTrim(TRIM_VALUE);
	TRIM_VALUE = LTrim(TRIM_VALUE);
	if(TRIM_VALUE==""){
		return "";
	}else{
		return TRIM_VALUE;
	}
} //End Function

function RTrim(VALUE){
	var w_space = String.fromCharCode(32);
	var v_length = VALUE.length;
	var strTemp = "";
	if(v_length < 0){
		return"";
	}
	var iTemp = v_length -1;
	while(iTemp > -1){
		if(VALUE.charAt(iTemp) == w_space){
		}else{
			strTemp = VALUE.substring(0,iTemp +1);
			break;
		}
		iTemp = iTemp-1;
	} //End While
	return strTemp;
} //End Function

function LTrim(VALUE){
	var w_space = String.fromCharCode(32);
	if(v_length < 1){
		return"";
	}
	var v_length = VALUE.length;
	var strTemp = "";
	var iTemp = 0;
	while(iTemp < v_length){
		if(VALUE.charAt(iTemp) == w_space){
		}else{
			strTemp = VALUE.substring(iTemp,v_length);
			break;
		}
		iTemp = iTemp + 1;
	} //End While
	return strTemp;
} //End Function

function checkEmail(email){
	if ((email.indexOf('@') < 0) || ((email.charAt(email.length-4) != '.') && (email.charAt(email.length-3) != '.'))) {
		return false;
	}else{
		return true;
	}
}

function doCheckTopic(form){

	// topic
	if (form.topic.value.length==0 || form.topic.value.length==null || Trim(form.topic.value)==""){
		alert("กรุณาใส่ คำถาม ..");
		form.topic.focus();
		return false;
	}

	// detail
	if (form.detail.value.length==0 || form.detail.value.length==null || Trim(form.detail.value)==""){
		alert("กรุณาใส่ รายละเเอียด ..");
		form.detail.focus();
		return false;
	}

	// name
	if (form.names.value.length==0 || form.names.value.length==null || Trim(form.names.value)==""){
		alert("กรุณาใส่ ชื่อ ..");
		form.names.focus();
		return false;
	}

	// SecureMsg
	if (form.SecureMsg.value.length==0 || form.SecureMsg.value.length==null || Trim(form.SecureMsg.value)==""){
		alert("กรุณากรอก รหัส 2 ตัว (ด้านล่าง)");
		form.SecureMsg.focus();
		return false;
	}

	// email address
	/*
	if (form.email.value.length==0 || form.email.value.length==null || Trim(form.email.value)==""){
		alert("กรุณากรอก email ..");
		form.email.focus();
		return false;
	}
	else{
		if (!checkEmail(form.email.value)){
			alert("กรุณากรอก email ให้ถูกต้อง");
			form.email.focus();
			return false;
		}
	}
	*/
}

function doCheckOpinion(form){


	// detail
	if (form.opinion.value.length==0 || form.opinion.value.length==null || Trim(form.opinion.value)==""){
		alert("กรุณาใส่ รายละเเอียด ..");
		form.opinion.focus();
		return false;
	}

	// name
	if (form.names.value.length==0 || form.names.value.length==null || Trim(form.names.value)==""){
		alert("กรุณาใส่ ชื่อ ..");
		form.names.focus();
		return false;
	}
	// SecureMsg
	if (form.SecureMsg.value.length==0 || form.SecureMsg.value.length==null || Trim(form.SecureMsg.value)==""){
		alert("กรุณากรอก รหัส 2ตัว (ด้านล่าง)");
		form.SecureMsg.focus();
		return false;
	}

}

function doCheckLogin(form){


	// User Name
	if (form.User.value.length==0 || form.User.value.length==null || Trim(form.User.value)==""){
		alert("กรุณาใส่ User Name ..");
		form.User.focus();
		return false;
	}

	// Password 
	if (form.Pass.value.length==0 || form.Pass.value.length==null || Trim(form.Pass.value)==""){
		alert("กรุณาใส่ Password");
		form.Pass.focus();
		return false;
	}
}