// prepare the form when the DOM is ready
$(document).ready(function() {
    // bind form using ajaxForm
    $('form[id=minmaxprice]').ajaxForm({
        // dataType identifies the expected content type of the server response
        dataType:  'xml',

        // success identifies the function to invoke when the server response
        // has been received
        success:   processXml

    });

});

function processXml(responseXML) {
    // 'responseXML' is the XML document returned by the server; we use
    // jQuery to extract the content of the message node from the XML doc
    var result = $('cena', responseXML).text();

         $('#kontener').html(
         result
       );


    //alert(message);
}