//FUNCTION TO CHECK IF FIELD IS EMPTY

function isemp(field,message) {



if (field.value == "")



{



	alert("Please key in your "+message)

	

	field.focus();



    	return false;



}







return true;



}





//--------------------------------------------------------------------------------------------------------

//FUNCTION TO CHECK IF FIELD IS EMPTY FOR (ADMINISTRATIVE QUESTIONS)

function isempquestion(field,message) {



if (field.value == "")



{



	alert("Please tell us "+message)



	field.focus();



    	return false;



}







return true;



}





//--------------------------------------------------------------------------------------------------------

//FUNCTION TO CHECK IF EMAIL IS VALID

function isValidEmail(field) {







validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;







   // search email text for regular exp matches



    if (field.value.search(validRegExp) == -1)



   {



   	alert('Please key in a valid email address.');



      	field.focus();



      	return false;



	



   }







return true;



}





//--------------------------------------------------------------------------------------------------------

//VALIDATE SELECTBOX

function isselect(field,message) {







if (field.selectedIndex <= 0)



{



	alert("Please select your "+message)



	field.focus();



    	return false;



}







return true;



}





//--------------------------------------------------------------------------------------------------------

//VALIDATE CHECKBOX

function ischeck(field,message)

{

	

	valid=false

	for(i=0;i<field.length;i++)

	{

		if(field[i].checked)

		{

			valid=true;

		}

	}



	if(!valid)

	{

		alert("Please select  "+message);

		field[0].focus();



		return false;

	}

	else

	{return true;}



}





//--------------------------------------------------------------------------------------------------------

//VALIDATE RADIO BUTTON

function isradio(field,message)

{

	var chosenradio = false;

	for (counterA = 0; counterA < field.length; counterA++)

	{

 		if (field[counterA].checked)

		 chosenradio = true;

 	}

 	if (!chosenradio)

 	{

		alert ("Please choose your "+message);

		field[0].focus();

 		return false;

 	}

 	else

	{

	return true;

	}



}





//--------------------------------------------------------------------------------------------------------

//VALIDATE TEXTAREA

function validtextarea(field,message)

{

	if (field.value.length < 1)

	{

		alert("Please fill in your "+message)

		field.focus();

		return false;

		

	}



return true;



}







//--------------------------------------------------------------------------------------------------------

//FUNCTION THAT PERFORMS ALL FUNCTIONS, DEFINED IN THE ONSUBMIT EVENT HANDLER

function check(ask)



{

   

   if (isselect(document.ask.title,"Title."))

	{

	   if (isemp(document.ask.contactPerson,"Name."))

	     {

	        if (isemp(document.ask.contactNumber,"Contact Number."))

	           {

	             if (isValidEmail(document.ask.eMail))

		 		   {

		 		     if (isselect(document.ask.area,"Area of Interest."))

		 		        {

	                 	return true;

                        }

                   }       

               }        

         }  

    

    }

   

     return false;

}