var qty_isEmptyMsg = "Quantity Ordered";
var name_isEmptyMsg = "Customer\'s Full Name";
var companyName_isEmptyMsg = "Company Name";
var contactNo_isEmptyMsg = "Contact No.";
var emailAddress_isEmptyMsg = "Email Address";
var subject_isEmptyMsg = "Subject";
var message_isEmptyMsg = "Message";
var memberCardNo_isEmptyMsg = "Member Card No.";
var memberICNo_isEmptyMsg = "Member I/C No.";
var fullName_isEmptyMsg = "Customer\'s Full Name";
var address_isEmptyMsg = "Address";
var postalCode_isEmptyMsg = "Postal Code";
var town_isEmptyMsg = "Town";
var state_isEmptyMsg = "State";
var telNo_isEmptyMsg = "Contact No.";
var email_isEmptyMsg = "Email Address";
var secretId_isEmptyMsg = "Secret Id";
var CARDNAME_isEmptyMsg = "Name On Card";
var CARDNO_isEmptyMsg = "Credit Card Number";
var CARDTYPE_isEmptyMsg = "Credit Card Type";
var expiryDate_isEmptyMsg = "Expiry Date";
var verificationCode_isEmptyMsg = "Card Verification Code";
var CUSTEMAIL_isEmptyMsg = "Email";
var recipientName_isEmptyMsg = "Recipient\'s Name";
var recipientCompanyName_isEmptyMsg = "Company Name";
var recipientAddress_isEmptyMsg = "Address";
var recipientPostalCode_isEmptyMsg = "Postal Code";
var recipientTown_isEmptyMsg = "Town";
var recipientState_isEmptyMsg = "State";
var recipientTelNo_isEmptyMsg = "Contact No.";
var recipientPreferredDate_isEmptyMsg = "Preferred Date";
var recipientSenderName_isEmptyMsg = "From";
var recipientMessage_isEmptyMsg = "Message";
var multipleRecipientName_isEmptyMsg = "Name";
var multipleCompanyName_isEmptyMsg = "Company Name";
var multipleAddress_isEmptyMsg = "Address";
var multiplePostalCode_isEmptyMsg = "Postal Code";
var multipleTown_isEmptyMsg = "Town";
var multipleState_isEmptyMsg = "State";
var multipleTelNo_isEmptyMsg = "Contact No.";
var senderName_isEmptyMsg = "From";
var senderMessage_isEmptyMsg = "Message";

function validate ( fieldName ) {
	var getField = eval("document.getElementById(\'"+fieldName+"\')");
	
	if(trim(getField.value)==""){
		alert(eval(fieldName+"_isEmptyMsg")+" is mandatory field.");
		getField.focus();
		return false;
	} else {
		return true;
	}

}


function ValidateFields( obj ){
    var fields = eval("new Array("+obj+")");
	var mainMsg = "The following are mandatory fields:\n\n";
	var showMsg = "";
	var lastField = "";
	var firstField = "";
	var i = 0;

    for (var x=0; x < fields.length; x++)
    {
		var getField = eval("document.getElementById(\'"+fields[x]+"\')");
		var fieldMsg = "";	
		if (obj.indexOf("_") > 1) {
			if (fields[x].indexOf("_") > 1) {
				fieldMsg = "   - "+(x>7 && x < 16?"Second Recipient\'s ":"Third Recipient\'s ") + eval(fields[x].substring(0,fields[x].indexOf("_"))+"_isEmptyMsg") +"\n";	
			} else fieldMsg = "   - First Recipient\'s " + eval(fields[x]+"_isEmptyMsg") +"\n";	
		} else fieldMsg = "   - " + eval(fields[x]+"_isEmptyMsg") +"\n";	
		if(trim(getField.value)==""){
			showMsg = showMsg + fieldMsg;
			lastField = fields[x];
			if (i==0) firstField = fields[x];
			i++;
		} 
    }
    
    if (i == 1) {
	    validate (lastField);
    } else {
	    if (showMsg != "") {
			getField = eval("document.getElementById(\'"+firstField+"\')");
		    alert (mainMsg+showMsg);
		    getField.focus();
		    return false;
	    } else {
		    return true;
	    }
    }
}

function ValidateNumericFields( obj ){
    var fields = eval("new Array("+obj+")");
	var mainMsg = "Only number is allowed for the following fields:\n\n";
	var showMsg = "";
	var lastField = "";
	var i = 0;

    for (var x=0; x < fields.length; x++)
    {
		var getField = eval("document.getElementById(\'"+fields[x]+"\')");
		var fieldMsg = "   - " + eval(fields[x]+"_isEmptyMsg") +"\n";	
		if(isNaN(getField.value)){
			showMsg = showMsg + fieldMsg;
			lastField = fields[x];
			i++;
		} 
    }
    
    if (i == 1) {
		var getField = eval("document.getElementById(\'"+lastField+"\')");
		alert("Only number is allowed for "+eval(lastField+"_isEmptyMsg")+"!");
		getField.select();		
		getField.focus();
		return false;
    } else {
	    if (showMsg != "") {
		    alert (mainMsg+showMsg);
		    return false;
	    } else {
		    return true;
	    }
    }
}

// Removes leading whitespaces
function LTrim( value ) {
	
	var re = /\s*((\S+\s*)*)/;
	return value.replace(re, "$1");
	
}

// Removes ending whitespaces
function RTrim( value ) {
	
	var re = /((\s*\S+)*)\s*/;
	return value.replace(re, "$1");
	
}

// Removes leading and ending whitespaces
function trim( value ) {
	
	return LTrim(RTrim(value));
	
}

function inputValueText(frmobj, inValue){
	//if(inValue!="")
		frmobj.value = inValue;	
}

function isCreditCardFormat(inValue) {
	var creditCardPattern=/^[0-9]{16,16}/
	var matchArray = inValue.match(creditCardPattern)
	if (inValue.substring(0,1) == "4" || inValue.substring(0,1) == "5") {
		document.commercePayment.MERCHANTID.value = "EuYanSang";	
//		if (inValue.substring(0,1) == "4")
//			document.commercePayment.MERCHANTID.value = "3300156688";
//		if (inValue.substring(0,1) == "5")
//			document.commercePayment.MERCHANTID.value = "5500150693";
	
		if(inValue.length != 16){
			return false;
		} else if (matchArray == null) {
			return false;
		} else return true;
	} else return false;
}

function isCreditCardExpiryDateFormat(inValue) {
	var datePattern=/^[0-9]{2,2}\/[0-9]{4,4}/
	var matchArray = inValue.match(datePattern)
	
	if(inValue.length != 7){
		return false;
	} else if (matchArray == null) {
		return false;
	} else if(isCreditCardExpDate(inValue)) {
		return true;
	}
}

function isEmailFormat(emailStr) {

	var emailPat=/^(.+)@(.+)$/
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
	var validChars="\[^\\s" + specialChars + "\]"
	var firstChars=validChars
	var quotedUser="(\"[^\"]*\")"
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
	var atom="(" + firstChars + validChars + "*" + ")"
	var word="(" + atom + "|" + quotedUser + ")"
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
	var matchArray=emailStr.match(emailPat)
	
	if (matchArray==null) {
		return false
	}
	
	var user=matchArray[1]
	var domain=matchArray[2]
	
	if (user.match(userPat)==null) {
	    return false
	}
	
	var IPArray=domain.match(ipDomainPat)
	
	if (IPArray!=null) {
		for (var i=1;i<=4;i++) {
		    if (IPArray[i]>255) {
				return false
		    }
	    }
	    return true
	}
	
	var domainArray=domain.match(domainPat)
	if (domainArray==null) {
	    return false
	}
	
	var atomPat=new RegExp(atom,"g")
	var domArr=domain.match(atomPat)
	var len=domArr.length;
	
	if (domArr[domArr.length-1].length<2 || domArr[domArr.length-1].length>3) {
	   	return false
	}
	
	if (domArr[domArr.length-1].length==3 && len<2) {
	   	return false
	}
	
	return true
}

function isCreditCardExpDate(inValue) {
	
	var datePat = /^(\d{2})(\/)(\d{4})$/;
	var dateStr = inValue;

	var matchArray = dateStr.match(datePat); 
	month = matchArray[1]; 
	year = matchArray[3];

	if(month=="08"||month=="09"){
		month = month.substr(1);
	}	

	if (parseInt(month) < 1 || parseInt(month) > 12) { 
		alert("Month must be between 1 and 12.");
		return false;
	}

	if (parseInt(year) < 2006 || parseInt(year) > 2020) { 
		alert("Year must be between 2006 and 2020.");
		return false;
	}
	
	return true;
}