// JavaScript Document

    function clickclear(thisfield, defaulttext) 
    {
    oldValue = thisfield.value
    if (thisfield.value == defaulttext) {thisfield.value = "";}
    }

    function clickrecall(thisfield) 
    {if (thisfield.value == "") {thisfield.value = oldValue;}}
    
    function validateFormOnSubmit(frm) 
    {
    var reason = "";
    reason += validateName(frm.realname);
    reason += validateEmail(frm.email);

    if (reason != "") 
    {alert("Some fields need correction:\n" + reason);
    return false;}
    return true;}
    function trim(s) {return s.replace(/^\s+|\s+$/, '');}

    function validateName(fld) {
    var error="";
    if (fld.value == "Enter your full name") 
    {   fld.style.background = 'Yellow';
        error = "You didn't enter your name.\n";
        return error;}
    else if (trim(fld.value) == "") 
    {   fld.style.background = 'Yellow';
        error = "You didn't enter your name.\n";
        return error;}
    else {fld.style.background = 'White';}
        return error;}

    function validateEmail(fld) {
    var error="";
    var tfld = trim(fld.value);                        // value of field with whitespace trimmed off
    var emailFilter = /^[^@]+@[^@.]+\.[^@]*\w\w$/ ;
    var illegalChars= /[\(\)\<\>\,\;\:\\\"\[\]]/ ;

    if (fld.value == "") 
    {  fld.style.background = 'Yellow';
        error = "You didn't enter an email address.\n";}
    else if (!emailFilter.test(tfld)) 
    {   //test email for illegal characters
        fld.style.background = 'Yellow';
        error = "Please enter a valid email address.\n";
    } else if (fld.value.match(illegalChars)) {
        fld.style.background = 'Yellow';
        error = "The email address contains illegal characters.\n";
    } else {fld.style.background = 'White';}
    return error;}

    function validatePhone(fld) 
    {var error = "";
    var stripped = fld.value.replace(/[\(\)\.\-\ ]/g, '');    
    if (fld.value == "") 
    {   error = "You didn't enter a phone number.\n";
        fld.style.background = 'Yellow';} 
    else if (isNaN(parseInt(stripped))) 
    {   error = "The phone number contains illegal characters.\n";
        fld.style.background = 'Yellow';} 
    else if (!(stripped.length == 10)) 
    {   error = "The phone number is the wrong length. Make sure you included an area code.\n";
        fld.style.background = 'Yellow';}
    return error;}