A simple JS library (with zero dependancies) that will help you trigger modal popups based on time, scroll position, or exit intent.

Each element that you intend to turn into a modal should be wrapped in a DIV with the class of .modal-monitor-backdrop. This DIV will create the backdrop behind the modal. The backdrop can be styled however you'd like.

Required Attributes

Four attributes must be present with each element that you'd like to turn into a modal:

1. A unique id
2. A class of modal-monitor
3. A data-method attribute with the value of "exit", "scroll", or "timed"
4. A data-trigger attribute:

• for a timed method the trigger would be time in ms (i.e. 10000 would trigger the modal after 10 seconds)
• for a scroll method "middle", or "bottom" are the valid trigger options signifying the position on the page that the modal should be triggered
• for a exit method, this can be left blank

You can have as many modals on a page as you'd like as long as they each have the 4 attributes listed above.

Optional Attributes

The following attribute can optionally be added to any .modal-monitor element:

• A data-frequency attribute can be set to a positive integer (i.e. 1, 7, 30, 365). The frequency attribute sets the number of days a modal should be hidden, before being viewed again by a visitor. The default value being 30 days (if a frequency is not manually set). Note: Once a conversion is set via the MODAL.Monitor.conversion(id) method, a modal will no longer be shown, no matter the frequency that is set.

With modal monitor, you can turn any DOM element into a modal popup. Here are a few examples:

1) Scroll to middle

<div class="modal-monitor-backdrop">
	<div id="scrollmiddle" class="modal-monitor" data-method="scroll" data-trigger="middle">You scrolled to the middle of the page. No frequency was set, so this modal will stay hidden for the default 30 days before being shown again.</div>
</div>
<script type="text/javascript" src="modalmonitor.js"></script>
<script>
	MODAL.Monitor.init();
</script>

2) Scroll to bottom

<div class="modal-monitor-backdrop">
	<div id="scrollbottom" class="modal-monitor" data-method="scroll" data-trigger="bottom" data-frequency="1">You scrolled to the bottom of the page. With the frequency set to 1, this modal will be shown again after 1 day (as long as no conversion has been registered).</div>
</div>
<script type="text/javascript" src="modalmonitor.js"></script>
<script>
	MODAL.Monitor.init();
</script>

3) After 10 seconds

<div class="modal-monitor-backdrop">
	<div id="timed10000" class="modal-monitor" data-method="timed" data-trigger="10000" data-frequency="7">10 seconds has passed before showing this modal. With the frequency set to 7, this modal will be shown again after 7 day (as long as no conversion has been registered).</div>
</div>
<script type="text/javascript" src="modalmonitor.js"></script>
<script>
	MODAL.Monitor.init();
</script>

3) After 10 seconds

<div class="modal-monitor-backdrop">
	<div id="exit" class="modal-monitor" data-method="exit" data-trigger="" data-frequency="365">When they go to leave the page, show this modal. With the frequency set to 365, this modal will be shown again after 365 day (as long as no conversion has been registered).</div>
</div>
<script type="text/javascript" src="modalmonitor.js"></script>
<script>
	MODAL.Monitor.init();
</script>

Check out example.html for more examples.

init()

Init kicks everything off. You can pass a number of custom options which are outlined below:

Example usage:

<script>
		MODAL.Monitor.init({
			"modalBackdropClass" : ".modal-monitor-backdrop", //CSS class of modal backdrop
			"modalClass" : ".modal-monitor", //CSS class of modal
			"cssTransitions" : {
				"used" : "false", //false, or true (change to true to turn CSS transitions on)
				"class" : "show", //This class name will be added to .modal-monitor-backdrop to trigger the CSS transition
				"delay" : "300" //When the modal is closed, the class name above will removed after this many ms
			},
			"frequencyDefault" : "1", //Default for cookie length
			"cookieNames" : {
				"default" : "conversion-false", //Default (non-conversion) cookie name
				"conversion" : "conversion-true" //Conversion cookie name
			}
		});
	</script>

abort()

If you wish to abort all modals, and prevent any popups from auto-matically showing, use this method.

Example usage: MODAL.Monitor.abort();

conversion()

Add a conversion for a specific modal based on the id you give it. Once a modal has a conversion, it will not be shown again no matter the frequency that is set.

Example usage: MODAL.Monitor.conversion('scrollmiddle');

hide()

The hide method lets you to manually hide all modals.

Example usage: MODAL.Monitor.hide();

show(id)

The show method allows you to manually trigger a modal to show based on the id you give it.

Example usage: MODAL.Monitor.show('scrollmiddle');