drabbytux

{% comment %}
Source: https://gist.github.com/carolineschnapp/9122054
If you are not on a collection page, do define which collection to use in the order form.
Use the following assign statement, replace 'your-collection-handle-here' with your collection handle.
{% assign collection = collections.your-collection-handle-here %}
Use the assign statement outside of this comment block at the top of your template.
{% endcomment %}

{% paginate collection.products by 100 %}

drabbytux

{{ '//code.jquery.com/ui/1.9.2/themes/base/jquery-ui.css' | stylesheet_tag }}
{{ '//ajax.googleapis.com/ajax/libs/jqueryui/1.9.2/jquery-ui.min.js' | script_tag }}

<div style="width:300px; clear:both;">
  <p>
    <label for="date">Pick a delivery date:</label>
    <input id="date" type="text" name="attributes[date]" value="{{ cart.attributes.date }}" />
    <span style="display:block" class="instructions"> We do not deliver during the week-end.</span>
  </p>
</div>

drabbytux

jQuery(function($) {
  $('form[action="/cart/add"]').submit(function() {
    var formIsValid = true;
    var message = "Please fill this out and you will be able to add the item to your cart.";
    $(this).find('[name^="properties"]').filter('.required, [required="required"]').each(function() {
      $(this).removeClass('error');
      if (formIsValid && $(this).val() == '') {
        formIsValid = false;
        message = $(this).attr('data-error') || message;
        $(this).addClass('error');

drabbytux

{% comment %}
  See https://docs.shopify.com/themes/customization/products/how-to-add-a-pick-an-option-to-drop-downs
{% endcomment %}

{% unless product.selected_variant %}
  {% if product.variants.size > 1 %}
    <script>
    var $addToCartForm = $('form[action="/cart/add"]');
    if (window.MutationObserver && $addToCartForm.length) {
      if (typeof observer === 'object' && typeof observer.disconnect === 'function') {

drabbytux

What you want

You want a See Size Chart button on the product page:

... that once clicked gives you this:

drabbytux

{% if template contains 'product' %}
{% assign size_options = 'size,taille' | split: ',' %}
{% assign size_chart_text_link = 'Size chart' %}
{% assign has_size = false %}
{% assign size_index = 0 %}
{% for option in product.options %}  
  {% assign downcased_option = option | downcase %}
  {% if has_size == false and size_options contains downcased_option %}
    {% assign has_size = true %}
    {% assign size_index = forloop.index0 %}

drabbytux

// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console