tapestry-core/src/test/app1/ImageSubmitDemo.tml

<t:border xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd"
        >

    <h1>Submit with an image</h1>

    <t:if test="value">
        <p>You entered
            <span id="outputvalue">${value}</span>
        </p>
        <p>"selected" event was fired: <span id="eventfired">${eventfired}</span>
        </p>
    </t:if>


    <t:form>
        <t:errors/>
        <t:textfield t:id="value"/>
        <br/>
        <t:submit t:id="mySubmit" class="btn btn-large" t:image="context:images/tapestry_banner.gif" />
    </t:form>

</t:border>