diff --git a/validator.coffee b/validator.coffee
new file mode 100644
index 0000000..9eac213
--- /dev/null
+++ b/validator.coffee
@@ -0,0 +1,69 @@
+class Validator
+    constructor: (@input, @tests) ->
+
+    validate: ->
+
+        passing = true
+        @errorMessages = []
+
+        for test in @tests
+            if not test.passes()
+                passing = false
+                @errorMessages.push test.errorMessage
+
+        return passing
+
+
+class EmailValidator extends Validator
+
+    validate: ->
+        ampersandAndPeriodTest = new Test(new RegExp("^([\\w.-]+)@([\\w.-]+)\\.([\\w.-]+)"), @input, "Invalid Email Address. Must have an ampersand and a period.")
+
+        @tests = [ampersandAndPeriodTest]
+
+        super
+
+
+class PasswordValidator extends Validator
+
+    validate: ->
+        lengthTest = new Test(new RegExp("^(.+){8,}"), @input, "Password must be at least 8 characters long.")
+        capitalTest = new Test(new RegExp(".*[A-Z]+.*"), @input, "Password must have at least one capital letter.")
+        numberTest = new Test(new RegExp(".*[0-9]+.*"), @input, "Password must have at least one number.")
+
+        @tests = [lengthTest, capitalTest, numberTest]
+
+        super
+
+
+class Test
+
+    constructor: (@regex, @input, @errorMessage) ->
+
+    passes: ->
+        @regex.test @input
+
+
+errorMessageDomElement = $("ul.errors")
+errorMessageDomElement.empty()
+
+form = $('form[name="sign_in"]')
+
+form.submit ->
+
+    errorMessageDomElement.empty()
+
+    email = form.find("input[type=text]").val()
+    password = form.find("input[type=password]").val()
+
+    emailValidator = new EmailValidator email
+    passwordValidator = new PasswordValidator password
+
+    validators = [emailValidator, passwordValidator]
+
+    validationResults = validators.map (validator) -> validator.validate()
+    errorMessages = (validators.map (validator) -> validator.errorMessages).reduce (a, b) -> a.concat b
+
+    for message in errorMessages
+        liElement = "<li>" + message  + "</li>"
+        errorMessageDomElement.append liElement
diff --git a/validator.js b/validator.js
index 860dab4..8195238 100644
--- a/validator.js
+++ b/validator.js
@@ -1,7 +1,116 @@
+// Generated by CoffeeScript 1.12.6
+(function() {
+  var EmailValidator, PasswordValidator, Test, Validator, errorMessageDomElement, form,
+    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
+    hasProp = {}.hasOwnProperty;
 
-  //insert your code here
- 
-$(function(){
+  Validator = (function() {
+    function Validator(input, tests) {
+      this.input = input;
+      this.tests = tests;
+    }
 
-  //insert your code here
-});
+    Validator.prototype.validate = function() {
+      var i, len, passing, ref, test;
+      passing = true;
+      this.errorMessages = [];
+      ref = this.tests;
+      for (i = 0, len = ref.length; i < len; i++) {
+        test = ref[i];
+        if (!test.passes()) {
+          passing = false;
+          this.errorMessages.push(test.errorMessage);
+        }
+      }
+      return passing;
+    };
+
+    return Validator;
+
+  })();
+
+  EmailValidator = (function(superClass) {
+    extend(EmailValidator, superClass);
+
+    function EmailValidator() {
+      return EmailValidator.__super__.constructor.apply(this, arguments);
+    }
+
+    EmailValidator.prototype.validate = function() {
+      var ampersandAndPeriodTest;
+      ampersandAndPeriodTest = new Test(new RegExp("^([\\w.-]+)@([\\w.-]+)\\.([\\w.-]+)"), this.input, "Invalid Email Address. Must have an ampersand and a period.");
+      this.tests = [ampersandAndPeriodTest];
+      return EmailValidator.__super__.validate.apply(this, arguments);
+    };
+
+    return EmailValidator;
+
+  })(Validator);
+
+  PasswordValidator = (function(superClass) {
+    extend(PasswordValidator, superClass);
+
+    function PasswordValidator() {
+      return PasswordValidator.__super__.constructor.apply(this, arguments);
+    }
+
+    PasswordValidator.prototype.validate = function() {
+      var capitalTest, lengthTest, numberTest;
+      lengthTest = new Test(new RegExp("^(.+){8,}"), this.input, "Password must be at least 8 characters long.");
+      capitalTest = new Test(new RegExp(".*[A-Z]+.*"), this.input, "Password must have at least one capital letter.");
+      numberTest = new Test(new RegExp(".*[0-9]+.*"), this.input, "Password must have at least one number.");
+      this.tests = [lengthTest, capitalTest, numberTest];
+      return PasswordValidator.__super__.validate.apply(this, arguments);
+    };
+
+    return PasswordValidator;
+
+  })(Validator);
+
+  Test = (function() {
+    function Test(regex, input, errorMessage) {
+      this.regex = regex;
+      this.input = input;
+      this.errorMessage = errorMessage;
+    }
+
+    Test.prototype.passes = function() {
+      return this.regex.test(this.input);
+    };
+
+    return Test;
+
+  })();
+
+  errorMessageDomElement = $("ul.errors");
+
+  errorMessageDomElement.empty();
+
+  form = $('form[name="sign_in"]');
+
+  form.submit(function() {
+    var email, emailValidator, errorMessages, i, len, liElement, message, password, passwordValidator, results, validationResults, validators;
+    errorMessageDomElement.empty();
+    email = form.find("input[type=text]").val();
+    password = form.find("input[type=password]").val();
+    emailValidator = new EmailValidator(email);
+    passwordValidator = new PasswordValidator(password);
+    validators = [emailValidator, passwordValidator];
+    validationResults = validators.map(function(validator) {
+      return validator.validate();
+    });
+    errorMessages = (validators.map(function(validator) {
+      return validator.errorMessages;
+    })).reduce(function(a, b) {
+      return a.concat(b);
+    });
+    results = [];
+    for (i = 0, len = errorMessages.length; i < len; i++) {
+      message = errorMessages[i];
+      liElement = "<li>" + message + "</li>";
+      results.push(errorMessageDomElement.append(liElement));
+    }
+    return results;
+  });
+
+}).call(this);