function v_f (o, s) {

        if (!o.value.search (/^\s*$/)) {

                alert (s + " is a required field.");

                o.focus();

                return false;

        } 

           else {return true;}

        

}



function v_f2 (o, s) {

        if (!o.value.search (/^\s*$/)) {

                alert (s + " is blank.");

                o.focus();

                return false;

        } 

           else {return true;}

        

}



function v_f3 (o, s) {

        if (!o.value.search (/^\s*$/)) {

                alert (s + ".");

                o.focus();

                return false;

        } 

           else {return true;}

        

}







function checkEmail(val) {



var filter=/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/;



if (filter.test(val)){

	return (true);

}

return (false);

}



// 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 validate () {

        if((document.optout.e.checked == false) && (document.optout.ema.checked == false) && 

           (document.optout.t.checked == false) && (document.optout.tel.checked == false) &&

           (document.optout.m.checked == false) && (document.optout.mai.checked == false))

        {

         alert("You must make a selection to continue.");

         document.optout.e.focus();          

          return false;

        }



                                                                                  

        if (!v_f (document.optout.first, "First name")) return false;

        if (!v_f (document.optout.last, "Last name")) return false;

        if (!v_f (document.optout.address, "Street address")) return false;

      if (!v_f (document.optout.city, "City")) return false;

if (!v_f (document.optout.state, "State")) return false;

if (!v_f (document.optout.zip, "Zip code")) return false;

var zipValue = trim(document.optout.zip.value);

if (zipValue.length < 5 ||(zipValue.length > 5 && zipValue.length < 10))

{

alert ("Enter valid zip code.");

document.optout.zip.value = "";

document.optout.zip.focus();

return false;

}

if (zipValue.length == 10)

{ 

if ((isNaN(zipValue.substr(0,5))) || (isNaN(zipValue.substr(6,4))) || (zipValue.lastIndexOf('-') != 5))

{

alert ("Enter valid zip code.");

document.optout.zip.value = "";

document.optout.zip.focus();

return false;

}

}



if (zipValue.length == 5)

{ 

if (isNaN(zipValue.substr(0,5)))

{

alert ("Enter valid zip code.");

document.optout.zip.value = "";

document.optout.zip.focus();

return false;

}

}



var emailValue = trim(document.optout.email.value);

if(emailValue != "")

{



document.optout.email.value = emailValue;



	if (!checkEmail(emailValue)) {

                alert ("Enter valid E-mail address.");

                document.optout.email.value = "";

                document.optout.email.focus();

                return false;

       }



}



var teleValue = trim(document.optout.tele.value);

if(teleValue != "")

{

if ((teleValue.indexOf('-') != 3) ||(teleValue.lastIndexOf('-') != 7) || (isNaN(teleValue.substr(0,3))) || (isNaN(teleValue.substr(4,3))) || (isNaN(teleValue.substr(8,4))) || (teleValue.length < 12))

{

 alert ("Your Preferred telephone number is invalid.");

 document.optout.tele.value = "";

 document.optout.tele.focus();

 return false;

}

}











if ((document.optout.e.checked == false) && (document.optout.ema.checked == false))

{

}

else

{



        if (!v_f2 (document.optout.email, "E-mail address")) return false;



var emailValue = trim(document.optout.email.value);



document.optout.email.value = emailValue;



	if (!checkEmail(emailValue)) {

                alert ("Enter valid E-mail address.");

                document.optout.email.value = "";

                document.optout.email.focus();

                return false;

       }

}





if ((document.optout.t.checked == false) && (document.optout.tel.checked == false))

{

}



else

{	

       if (!v_f2 (document.optout.tele, "Preferred telephone number")) return false;

var teleValue = trim(document.optout.tele.value);

if ((teleValue.indexOf('-') != 3) ||(teleValue.lastIndexOf('-') != 7) || (isNaN(teleValue.substr(0,3))) || (isNaN(teleValue.substr(4,3))) || (isNaN(teleValue.substr(8,4))) || (teleValue.length < 12))

{

 alert ("Your Preferred telephone number is invalid.");

 document.optout.tele.value = "";

 document.optout.tele.focus();

 return false;

}



}





         return true;

   

}



function validate2 () {



if((document.optout.e.checked == false) && (document.optout.ema.checked == false))

        {

         alert("You must make a selection to continue.");

         document.optout.e.focus();          

          return false;

        }

        

    if ((document.optout.e.checked == false) && (document.optout.ema.checked == false))

{

if (document.optout.email.value == "")

{



document.optout.email.value = "";



}

else

{

document.optout.email.value = "";

alert ("Should not enter E-mail address.");



}

}

else

{



        if (!v_f (document.optout.email, "E-mail address")) return false;



var emailValue = trim(document.optout.email.value);



document.optout.email.value = emailValue;



	if (!checkEmail(emailValue)) {

                alert ("Enter valid E-mail address.");

                document.optout.email.value = "";

                document.optout.email.focus();

                return false;

       }

}





         return true;



}