//function to check for valid email

function checkEmail(ctlName){

	var myString = new String(""+ctlName.value);

	var isvalid="yes";

	if ((myString.indexOf("@")<0) || (myString.charAt(0)==".") || (myString.charAt(0)=="@") || (myString.length<6) || (myString.indexOf(".")<0) || (myString.charAt(myString.indexOf("@")+1)==".") || (myString.charAt(myString.indexOf("@")-1)==".") || (myString.charAt(myString.length-1)==".") || (checkNumTimes(ctlName,"@")!=1) || (myString.charAt(myString.indexOf(".")+1)==".")){

		isvalid="no";

	}



	return isvalid;

	

}



//checks the number of occurences of strChar within value of intWhich

//used mainly for checking multiple "@" in email

function checkNumTimes(ctlName,strChar){

	var strValue2 = eval(ctlName.value);

	var noFound=0;

	for (var i=0; i<strValue2.length; i++){

		if(strValue2.charAt(i)==strChar){

			noFound++;

		}

	}

	return noFound;

}



function validate_feedbackform(fsmasform)

{

	if (fsmasform.contact_name.value=="") {

		window.alert("Please enter your name.");

		fsmasform.contact_name.focus();

		return false;

	}

	if (fsmasform.contact_tel.value=="") {

		window.alert("Please enter your telephone no.");

		fsmasform.contact_tel.focus();

		return false;

	}

	if (fsmasform.feedback.value=="") {

		window.alert("Please enter your feedback or enquiries.");

		fsmasform.feedback.focus();

		return false;

	}			

	if (fsmasform.contact_email.value=="") {

		window.alert("Please enter your email address.");

		fsmasform.contact_email.focus();

		return false;

	}

	var sCont = document.fsmasform.contact_email;

	var sContVal = document.fsmasform.contact_email.value;



	var str=new String();

	str=sContVal;

	var span=new RegExp("[ ]","g");

	var rep=str.replace(span,"9");          



	if (sContVal.length != 0)

    {

    	if(sContVal == ''  || isNaN(rep) == false)

        {

		alert("Please enter email with correct format");

        sCont.focus();

        sCont.select();

        return false;

        }                         

                         

        var sAtSym    = sContVal.indexOf('@')

        var sAtSym2       = sContVal.lastIndexOf('@')

        var sPeriod   = sContVal.lastIndexOf('.')

        var sSpace    = sContVal.indexOf(' ')

        var sLength   = sContVal.length - 1   

          

        if ( (sAtSym < 2) || (sAtSym != sAtSym2) || (sPeriod <= sAtSym+2) || (sPeriod == sLength ) || (sSpace  != -1) )                  

    	{

        alert("Please enter email with correct format");

        sCont.focus();

        sCont.select();

        return false;

        }

    }

}

function validate_course_registration(courses_registration)

{

	if (courses_registration.reg_name.value=="") {

		window.alert("Please enter your Name.");

		courses_registration.reg_name.focus();

		return false;

	}

	if (courses_registration.reg_nric.value=="") {

		window.alert("Please enter your NRIC.");

		courses_registration.reg_nric.focus();

		return false;

	}

	if (courses_registration.reg_address.value=="") {

		window.alert("Please enter your Address.");

		courses_registration.reg_address.focus();

		return false;

	}

	if (courses_registration.reg_postal.value=="") {

		window.alert("Please enter your Postal Code.");

		courses_registration.reg_postal.focus();

		return false;

	}

	if (courses_registration.reg_home_tel.value=="") {

		window.alert("Please enter your Home Telephone No..");

		courses_registration.reg_home_tel.focus();

		return false;

	}

	if (courses_registration.reg_qualification.value=="") {

		window.alert("Please enter your highest qualification.");

		courses_registration.reg_qualification.focus();

		return false;

	}	

	if (courses_registration.reg_email.value=="") {

		window.alert("Please enter your Email.");

		courses_registration.reg_email.focus();

		return false;

	}

	var sCont = document.courses_registration.reg_email;

	var sContVal = document.courses_registration.reg_email.value;



	var str=new String();

	str=sContVal;

	var span=new RegExp("[ ]","g");

	var rep=str.replace(span,"9");          



	if (sContVal.length != 0)

    {

    	if(sContVal == ''  || isNaN(rep) == false)

        {

		alert("Please enter email with correct format");

        sCont.focus();

        sCont.select();

        return false;

        }                         

                         

        var sAtSym    = sContVal.indexOf('@')

        var sAtSym2       = sContVal.lastIndexOf('@')

        var sPeriod   = sContVal.lastIndexOf('.')

        var sSpace    = sContVal.indexOf(' ')

        var sLength   = sContVal.length - 1   

          

        if ( (sAtSym < 2) || (sAtSym != sAtSym2) || (sPeriod <= sAtSym+2) || (sPeriod == sLength ) || (sSpace  != -1) )                  

    	{

        alert("Please enter email with correct format");

        sCont.focus();

        sCont.select();

        return false;

        }

    }

}

function validate_join_us(join_us)

{

	if (join_us.member_name.value=="") {

		window.alert("Please enter your Name.");

		join_us.member_name.focus();

		return false;

	}

	if (join_us.member_nric.value=="") {

		window.alert("Please enter your NRIC.");

		join_us.member_nric.focus();

		return false;

	}

	if (join_us.member_dob.value=="") {

		window.alert("Please enter your Date of Birth.");

		join_us.member_dob.focus();

		return false;

	}

	if (join_us.member_birth_place.value=="") {

		window.alert("Please enter your Place of Birth.");

		join_us.member_birth_place.focus();

		return false;

	}

	if (join_us.member_address.value=="") {

		window.alert("Please enter your Address.");

		join_us.member_address.focus();

		return false;

	}

	if (join_us.member_postal.value=="") {

		window.alert("Please enter your Postal Code.");

		join_us.member_postal.focus();

		return false;

	}

	if (join_us.member_home_tel.value=="") {

		window.alert("Please enter your Home Telephone No..");

		join_us.member_home_tel.focus();

		return false;

	}

	if (join_us.member_mobile_tel.value=="") {

		window.alert("Please enter your Mobile No..");

		join_us.member_mobile_tel.focus();

		return false;

	}


	if (join_us.member_email.value=="") {

		window.alert("Please enter your Email.");

		join_us.member_email.focus();

		return false;

	}

	var sCont = document.join_us.member_email;

	var sContVal = document.join_us.member_email.value;



	var str=new String();

	str=sContVal;

	var span=new RegExp("[ ]","g");

	var rep=str.replace(span,"9");          



	if (sContVal.length != 0)

    {

    	if(sContVal == ''  || isNaN(rep) == false)

        {

		alert("Please enter email with correct format");

        sCont.focus();

        sCont.select();

        return false;

        }                         

                         

        var sAtSym    = sContVal.indexOf('@')

        var sAtSym2       = sContVal.lastIndexOf('@')

        var sPeriod   = sContVal.lastIndexOf('.')

        var sSpace    = sContVal.indexOf(' ')

        var sLength   = sContVal.length - 1   

          

        if ( (sAtSym < 2) || (sAtSym != sAtSym2) || (sPeriod <= sAtSym+2) || (sPeriod == sLength ) || (sSpace  != -1) )                  

    	{

        alert("Please enter email with correct format");

        sCont.focus();

        sCont.select();

        return false;

        }

    }

	if (join_us.batch_no.value=="") {

		window.alert("Please enter your Batch No..");

		join_us.batch_no.focus();

		return false;

	}

	if (join_us.cert_award_date.value=="") {

		window.alert("Please enter your Certificated Awarded On.");

		join_us.cert_award_date.focus();

		return false;

	}

}