function formValidator(){
        // Make quick references to our fields
        var fname = document.getElementById('fname');
        var lname = document.getElementById('lname');
        var phone = document.getElementById('phone');
        var email = document.getElementById('email');
        
        // Check each input in the order that it appears in the form!
        if(isAlphabet(fname, "Please Enter Your First Name")){
                if(isAlphabet(lname, "Please Enter Your Last Name")){
                	if(isNumeric(phone, "Please Enter Your Phone Number. \n** Please No Dashes Or Spaces ** \nPhone Number Format \"5551112233\".")){
                			if(lengthRestriction(phone, 10, 10)){

                                                if(emailValidator(email, "Please enter a valid email address")){
                                                        return true;
                                                }
                                        }
                                }
                        }

        }
        return false;
        
}

function notEmpty(elem, helperMsg){
        if(elem.value.length == 0){
                alert(helperMsg);
                elem.focus(); // set the focus to this input
                return false;
        }
        return true;
}

function isNumeric(elem, helperMsg){
        var numericExpression = /^[0-9]+$/;
        if(elem.value.match(numericExpression)){
                return true;
        }else{
                alert(helperMsg);
                elem.focus();
                return false;
        }
}

function isAlphabet(elem, helperMsg){
        var alphaExp = /^[a-zA-Z]+$/;
        if(elem.value.match(alphaExp)){
                return true;
        }else{
                alert(helperMsg);
                elem.focus();
                return false;
        }
}

function isAlphanumeric(elem, helperMsg){
        var alphaExp = /^[0-9a-zA-Z]+$/;
        if(elem.value.match(alphaExp)){
                return true;
        }else{
                alert(helperMsg);
                elem.focus();
                return false;
        }
}

function lengthRestriction(elem, min, max){
        var uInput = elem.value;
        if(uInput.length >= min && uInput.length <= max){
                return true;
        }else{
                alert("Please Enter 10 Digits. \n** Please No Dashes Or Spaces ** \nPhone Number Format \"5551112233\".");
                elem.focus();
                return false;
        }
}

function madeSelection(elem, helperMsg){
        if(elem.value == "Please Choose"){
                alert(helperMsg);
                elem.focus();
                return false;
        }else{
                return true;
        }
}

function emailValidator(elem, helperMsg){
        var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
        if(elem.value.match(emailExp)){
                return true;
        }else{
                alert(helperMsg);
                elem.focus();
                return false;
        }
}