omboBox</h2>
<p>Navigate through combobox items width keyboard to select an item.</p>
<div style="margin:20px 0;">
    <input type="checkbox" checked onchange="$('#cc').combobox({selectOnNavigation:$(this).is(':checked')})">
    <span>SelectOnNavigation</span>
</div>

<select id="cc" class="easyui-combobox" name="state" style="width:200px;">
    <option value="AL">Alabama</option>
    <option value="AK">Alaska</option>
    <option value="AZ">Arizona</option>
    <option value="AR">Arkansas</option>
    <opt