This is a function I need to call when my JQuery date picker selects both to and from dates:

function showUser() {

    // Retrieve values from the selects

    var DateFrom = document.getElementById('DateFrom').value;

    var DateTo = document.getElementById('DateTo').value;





    if (dtd== || dtm ==  || dfd ==  || dfm == ) {

        document.getElementById(txtHint).innerHTML=;

        return;

    }



    if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari

        xmlhttp=new XMLHttpRequest();

    } else {// code for IE6, IE5

        xmlhttp=new ActiveXObject(Microsoft.XMLHTTP);

    }



    xmlhttp.onreadystatechange=function() {

        if (xmlhttp.readyState==4 && xmlhttp.status==200) {

            document.getElementById(txtHint).innerHTML=xmlhttp.responseText;

        }

    }



    xmlhttp.open(GET,/StreetHailDrivers.php?DateFrom=+DateFrom+&DateTo=+DateTo,true);

    xmlhttp.send();

}

and this is my datepicker:

  $(function() {

    $('.datepicker').datepicker({ onSelect: showUser(), minDate: -90, maxDate: +1D });

  });

If i take out the onSelect: showUser() The datepicker works fine, but doesnt post the data, but if i include the onselect the datepicker doesnt work. no drop down.

I also tried the onchange event in the html:

 <input type=text class=datepicker  name=DateTo id=DateTo onchange=showUser() /> 

what should I do to get it working?