// Copyright Capital C Print Design 2006-2008. All rights reserved.

function validate(theForm)
{
  var reason = "";

  reason += validateNonEmpty(theForm.name);
  reason += validateEmail(theForm.email);
  reason += validatePhone(theForm.phone);
  reason += validateNonEmpty(theForm.company);
  reason += validateNonEmpty(theForm.message);

  if (reason != "") {
    alert("The following fields need to be corrected:\n" + reason);
    return false;
  }

  return true;
}

function trimEmail(s)
{
  return s.replace(/^\s+|\s+$/, '');
} 

function validateEmail(fld) {
    var error="";
    var tfld = trimEmail(fld.value);
    var emailFilter = /^[^@]+@[^@.]+\.[^@]*\w\w$/ ;
    var illegalChars= /[\(\)\<\>\,\;\:\\\"\[\]]/ ;
    
    if (fld.value == "") {
        fld.style.background = 'Red';
        error = "Please enter an email address.\n";
    } else if (!emailFilter.test(tfld)) {
        fld.style.background = 'Red';
        error = "Please enter a valid email address.\n";
    } else if (fld.value.match(illegalChars)) {
        fld.style.background = 'Red';
        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 = "Please enter a phone number.\n";
        fld.style.background = 'Red';
    } else if (isNaN(parseInt(stripped))) {
        error = "The phone number contains illegal characters.\n";
        fld.style.background = 'Red';
    } else if (!(stripped.length == 10)) {
        error = "Phone number needs to be of the form abcxyzdefg (10 digits without any other characters).\n";
        fld.style.background = 'Red';
    } else {
        fld.style.background = 'White';
    }
    return error;
}

function validateNonEmpty(fld) {
    var error = "";
  
    if (fld.value.length == 0) {
        fld.style.background = 'Red'; 
        error = "The required field " + fld.name + " in red needs to be filled in.\n";
    } else {
        fld.style.background = 'White';
    }
    return error;   
}