<se:switch expression="translation.arg(1,rem='Use &quot;init&quot; to add all the plumbing to your form,
    &quot;set&quot; to get the value of a control taking the zip code from posted data.')"
    >
    <se:case value="init">
        {buffer.set('formId',translation.arg(2,rem='Id of the enriched form'))}
        {buffer.set('zipControl',translation.arg(3,rem='Name of the zip code control'))}
        {buffer.set('streetControl',translation.arg(4,rem='Name of the street control for mode init, name of the requested value for mode set.'))}
        {buffer.set('cityControl',translation.arg(5,rem='Name of the street control'))}
        <!--// Initialize javascript for enrichment -->
        {placeholder.addjavascriptonload("$get('addrInvulKnop').style.display='none';")}
        {placeholder.addjavascriptonload("$addHandler(getZip(), 'change', PostWebRequest);")}
        <se:placeholder.addjavascriptinclude url="/AJAX/Scripts/MicrosoftAjax.js" />
        <se:placeholder.addjavascriptinclude url="/AJAX/Scripts/MicrosoftAjaxWebForms.js" />
        <se:placeholder.addjavascriptinclude url="/AJAX/Scripts/Toolkit/Common.js" />
        <se:placeholder.addjavascriptinclude url="/AJAX/Scripts/Toolkit/BaseScripts.js" />
        <se:placeholder.addjavascriptinclude url="{channel.link('JS_ZIPCODE')}" />
        <se:placeholder.addjavascript>
            function getZip(){
                return $get("{buffer.get('formId')}").elements["{buffer.get('zipControl')}"];
            }
            
            function getStreet(){
                return $get("{buffer.get('formId')}").elements["{buffer.get('streetControl')}"];
            }
            
            function getCity(){
                return $get("{buffer.get('formId')}").elements["{buffer.get('cityControl')}"];
            }
        
            // This function performs a POST Web request.
            function PostWebRequest()
            {
                pwr("{channel.link(translation.number())}");
            }
        </se:placeholder.addjavascript>
        <input type="submit" id="addrInvulKnop" name="updateAddress" value="Adres invullen" />
    </se:case>
    <se:case value="set" whitespace="remove">
        {buffer.set('zipControl',translation.arg(3,rem='Name of the zip code control'))}
        <!--// TODO: Harden against SQL injection -->
        {buffer.set('requestedValue',translation.arg(4,rem='Name of the street control for mode init, name of the requested value for mode set.'))}
        <se:sqlquery 
            condition="request.form(buffer.get('zipControl'),default='')!=''"
            sql="select {buffer.get('requestedValue',whitespace='normalize')} from zipcodes where zipcode='{request.form(buffer.get(zipControl))}'">
            <se:parameters>                
                <se:parameter name="rowformat">{this.field(1)}</se:parameter>
            </se:parameters>
        </se:sqlquery>
    </se:case>
    <se:case whitespace="remove">
        <!--// Handle postback -->
        <se:json />
        <se:if expression="page.json.exists('zip')">
            <se:then>
                <se:sqlquery whitespace="preserve">
                    <se:parameters>
                        <se:parameter name="sql">
                            select street, city from zipcodes where zipcode=?
                        </se:parameter>
                        <se:parameter name="params">{page.json.getvalue('zip')}</se:parameter>
                        <se:parameter name="format">
                            <se:rowformat match="first">"city":"{this.field(city)}","street":"{this.field(street)}"</se:rowformat>
                            <se:rowformat></se:rowformat>
                        </se:parameter>
                        <se:parameter name="resultformat">{{this.result()}}</se:parameter>
                    </se:parameters>
                </se:sqlquery>
                {response.contenttype('application/json')}
            </se:then>
            <se:else>
                {response.redirect(4216)}
            </se:else>
        </se:if>
    </se:case>
</se:switch>