<?xml version="1.0" encoding="UTF-8"?>
<form>
    
    <field name="debug" type="yesno" label="Debug" default="0" />

    <field name="debug_email" type="email" label="Debug Email" showon="debug:1" />
    
    <field name="user_id" type="text" label="User Id" hint="user_id" />
    
    <field 
     	name="cf" 
        type="sql" 
        label="Custom Field"
        query="SELECT id, title FROM #__fields WHERE state=1 AND context='com_users.user'" 
        key_field="id" 
        value_field="title"
        header="JSELECT"
        layout="joomla.form.field.list-fancy-select" />
  
  	<field name="cf_type" type="list" label="Type" default="1">
        <option value="1">Set Value</option>
        <option value="2">Increment Value</option>
  	</field>
		
	<field name="val" type="text" label="Value" />

</form>