This example shows how mark an element to be the first focusable item, which is the OK-button. Looping through the focussable items can be done by the tab-keys - which is the default.
Code-example:
<style type="text/css">
.container {
width: 300px;
margin: 20px;
border: solid 1px #000;
padding: 10px;
display: inline-block;
}
.container.focussed {
border: solid 2px #F00;
background-color: #F5F5F5;
}
.container input {
display: block;
margin: 4px 0;
}
</style>
<body>
<div class="container pure-form" plugin-fm="true">
<input type="text" value="first"/>
<input type="text" value="second"/>
<input type="checkbox" />
<button class="pure-button pure-button-bordered">Cancel</button>
<button class="pure-button pure-button-bordered" fm-defaultitem="true">OK</button>
</div>
</body>
<script src="itsabuild-min.js"></script>
<script>
document.getElement('.container').focus();
</script>