JQUERY Slider bekommen Wert

etwas wie dieses:

console.log($("#slider-range-max").slider('value'));

Mehr info:

http://docs.jquery.com/UI/Slider#method-value

Da konnte man einfach einstellen, dass der Wert eines hidden input Feld:

<input type="hidden" name="slider_val" id="slider_val" />

<script>
    var val = $('#slider-range-max').slider('value');

    $('#slider_val').val(val);
</script>

Habe ich dieses Recht jetzt:

<script>
    $(function() {
        $( "#slider-range-max" ).slider({
            range: "max",
            min: <%=minprice%>,
            max: <%=maxprice%>,
            value: <%=minprice%>,
            slide: function( event, ui ) {
                $( "#amount" ).val( ui.value );
            }
        });
        $( "#amount" ).val( $( "#slider-range-max" ).slider( "value" ) );
    });

</script>
<div class="demo">
    <label for="amount">Selecteer uw maximum prijs: &euro;</label>
    <input type="text" id="amount" name="maxprijs" style="border:0; color:#f6931f; font-size:14px; font-weight:bold;" />
<div id="slider-range-max"></div>

</div>
<script>     
var val = $('#slider-range-max').slider('value');      
$('#slider_val').val(val); 
</script> 
    <form name="priceSearch" method="post" action="sanitair.asp">
    <input type="hidden" name="act" value="price" />
    <input type="hidden" name="slider_val" id="slider_val" />  
    <input type="button" class="infoButton" value="Sorteren" onclick="searchpr()" />

Aber slider_val ist leer, was mache ich falsch?

InformationsquelleAutor Seth