I have a form in Bootstrap 3 that's inside a modal. There's a button called "submit" where when it's clicked the stuff that was entered in the form should be sent to the database. Although when I click "Submit" nothing happens.
Here is a live preview: http://rentmycar.pe.hu/index.html
<!--Checkout Modal Start -->
<div class = "modal fade" id = "checkoutModal" tabindex = "-1" role = "dialog" aria-labelledby = "checkoutModalLabel" aria-hidden = "true" data-backdrop = "static">
<div class = "modal-dialog">
<div class = "modal-content">
<form action = "index.html" method = "post" id = "checkout-form" name = "checkout-form">
<!--Modal header start -->
<div class = "modal-header">
<button type = "button" class = "close" data-dismiss = "modal" aria-hidden = "true">×
</button>
<h4 class = "modal-title" id = "myModalLabel">Complete reservation</h4>
</div>
<!--Modal header end -->
<!--Modal body start -->
<div class = "modal-body">
<!--Checkout Info start -->
<div class = "checkout-info-box">
<h3><i class = "fa fa-info-circle"></i> Upon completing this reservation enquiry, you will receive::</h3>
<p>Your rental voucher to produce on arrival at the rental desk and a toll-free customer support number.</p>
</div>
<!--Checkout Info end -->
<!--Checkout Rental Info start -->
<div class = "checkout-vehicle-info">
<div class = "location-date-info">
<h3>Location & Date</h3>
<div class = "info-box">
<span class = "glyphicon glyphicon-calendar"></span>
<h4 class = "info-box-title">Pick-Up Time</h4>
<p class = "info-box-description"><span id = "pick-up-date-ph"></span> at <span id = "pick-up-time-ph"></span></p>
<input type = "hidden" name = "pick-up" id = "pick-up" value = "">
</div>
<div class = "info-box">
<span class = "glyphicon glyphicon-calendar"></span>
<h4 class = "info-box-title">Drop-Off Time</h4>
<p class = "info-box-description"><span id = "drop-off-date-ph"></span> at <span id = "drop-off-time-ph"></span></p>
<input type = "hidden" name = "drop-off" id = "drop-off" value = "">
</div>
<div class = "info-box">
<span class = "glyphicon glyphicon-map-marker"></span>
<h4 class = "info-box-title">Pick-Up Location</h4>
<p class = "info-box-description" id = "pickup-location-ph"></p>
<input type = "hidden" name = "pickup-location" id = "pickup-location" value = "">
</div>
<div class = "info-box">
<span class = "glyphicon glyphicon-map-marker"></span>
<h4 class = "info-box-title">Drop-Off Location</h4>
<p class = "info-box-description" id = "dropoff-location-ph"></p>
<input type = "hidden" name = "dropoff-location" id = "dropoff-location" value = "">
</div>
</div>
<div class = "vehicle-info">
<h3>CAR: <span id = "selected-car-ph"></span></h3> <a href = "#vehicles" class = "scroll-to">[Vehicle Models]</a>
<input type = "hidden" name = "selected-car" id = "selected-car" value = "">
<div class = "clearfix"></div>
<div class = "vehicle-image">
<img class = "img-responsive" id = "selected-vehicle-image" src = "#" alt = "Vehicle">
</div>
</div>
<div class = "clearfix"></div>
</div>
<!--Checkout Rental Info end -->
<hr>
<!--Checkout Personal Info start -->
<div class = "checkout-personal-info">
<div class = "alert hidden" id = "checkout-form-msg">
test
</div>
<h3>PERSONAL INFORMATION</h3>
<div class = "form-group left">
<label for = "first-name">First Name:</label>
<input type = "text" class = "form-control" name = "first-name" id = "first-name" placeholder = "Enter your first name">
</div>
<div class = "form-group right">
<label for = "last-name">Last Name:</label>
<input type = "text" class = "form-control" name = "last-name" id = "last-name" placeholder = "Enter your last name">
</div>
<div class = "form-group left">
<label for = "phone-number">Phone Number:</label>
<input type = "text" class = "form-control" name = "phone-number" id = "phone-number" placeholder = "Enter your phone number">
</div>
<div class = "form-group right age">
<label for = "age">Age:</label>
<div class = "styled-select-age">
<select name = "age" id = "age">
<option value = "18">18</option>
<option value = "19">19</option>
<option value = "20">20</option>
<option value = "21">21</option>
<option value = "22">22</option>
<option value = "23">23</option>
<option value = "24">24</option>
<option value = "25">25</option>
<option value = "26">26</option>
<option value = "27">27</option>
<option value = "28">28</option>
<option value = "29">29</option>
<option value = "30">30</option>
<option value = "31">31</option>
<option value = "32">32</option>
<option value = "33">33</option>
<option value = "34">34</option>
<option value = "35">35</option>
<option value = "36">36</option>
<option value = "37">37</option>
<option value = "38">38</option>
<option value = "39">39</option>
<option value = "40">40</option>
<option value = "41">41</option>
<option value = "42">42</option>
<option value = "43">43</option>
<option value = "44">44</option>
<option value = "45">45</option>
<option value = "46">46</option>
<option value = "47">47</option>
<option value = "48">48</option>
<option value = "49">49</option>
<option value = "50">50</option>
<option value = "51">51</option>
<option value = "52">52</option>
<option value = "53">53</option>
<option value = "54">54</option>
<option value = "55">55</option>
<option value = "56">56</option>
<option value = "57">57</option>
<option value = "58">58</option>
<option value = "59">59</option>
<option value = "50">50</option>
<option value = "61">61</option>
<option value = "62">62</option>
<option value = "63">63</option>
<option value = "64">64</option>
<option value = "65">65</option>
<option value = "66">66</option>
<option value = "67">67</option>
<option value = "68">68</option>
<option value = "69">69</option>
<option value = "70">70</option>
<option value = "71">71</option>
<option value = "72">72</option>
<option value = "73">73</option>
<option value = "74">74</option>
<option value = "75">75</option>
<option value = "76">76</option>
<option value = "77">77</option>
<option value = "78">78</option>
<option value = "79">79</option>
<option value = "80">80</option>
<option value = "81">81</option>
<option value = "82">82</option>
<option value = "83">83</option>
<option value = "84">84</option>
<option value = "85">85</option>
<option value = "86">86</option>
<option value = "87">87</option>
<option value = "88">88</option>
<option value = "89">89</option>
<option value = "90">90</option>
<option value = "91">91</option>
<option value = "92">92</option>
<option value = "93">93</option>
<option value = "94">94</option>
<option value = "95">95</option>
<option value = "96">96</option>
<option value = "97">97</option>
<option value = "98">98</option>
<option value = "99">99</option>
<option value = "100">100</option>
</select>
</div>
</div>
<div class = "form-group left">
<label for = "email-address">Email:</label>
<input type = "email" class = "form-control" name = "email-address" id = "email-address" placeholder = "Enter your email address">
</div>
<div class = "form-group right">
<label for = "email-address-confirm">Confirm Email Address:</label>
<input type = "email" class = "form-control" name = "email-address-confirm" id = "email-address-confirm" placeholder = "Confirm your email address">
</div>
<div class = "clearfix"></div>
</div>
<!--Checkout Personal Info end -->
<!--Checkout Address Info start -->
<div class = "checkout-address-info">
<div class = "form-group address">
<label for = "address">Address</label>
<input type = "text" class = "form-control" name = "address" id = "address" placeholder = "Enter your Street an No.">
</div>
<div class = "form-group city">
<label for = "city">City</label>
<input type = "text" class = "form-control" name = "city" id = "city" placeholder = "Enter your City">
</div>
<div class = "form-group zip-code">
<label for = "zip-code">Zip Code</label>
<input type = "text" class = "form-control" name = "zip-code" id = "zip-code" placeholder = "Enter your Zip Code">
</div>
<div class = "clearfix"></div>
</div>
<!--Checkout Address Info end -->
<div class = "newsletter">
<div class = "form-group">
<div class = "checkbox">
<input id = "check1" type = "checkbox" name = "newsletter" value = "yes">
<label for = "check1">Please send me latest news and updates</label>
</div>
</div>
</div>
</div>
<!--Modal body end -->
<!--Modal footer start -->
<div class = "modal-footer">
<span class = "btn-border btn-gray">
<button type = "button" class = "btn btn-default btn-gray" data-dismiss = "modal">Cancel</button>
</span>
<span class = "btn-border btn-yellow">
<button type="submit" class="btn btn-primary btn-yellow">Reserve now</button>
</span>
</div>
<!--Modal footer end -->
</form>
</div>
</div>
</div>
<!--Checkout Modal end -->
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