Problem with Display extra field in Search

Provided you are only loading a single field for all categories, you can edit the javascript to prevent updating based on the change of the category. Something like this:

Replace this section of search.tpl with either of the two below:

Code:

$("#type").change(function()
{
    $("#response").show();
    $("#optResponse").hide();
    //alert($('#type option:selected').val());
    $.ajax({
        url: 'ajax.php',
        data: 'action=extra_listing_fields&do=search§ion=' + $('#type option:selected').val(),
        type: 'post',
        success: function (msg) {
            $("#response").html(msg);
        }
    });
});

Code:

var type = 1; //this must be a universal extra field that never changes
 $.ajax({
        url: 'ajax.php',
        data: 'action=extra_listing_fields&do=search§ion=' + type,
        type: 'post',
        success: function (msg) {
            $("#response").html(msg);
        }
 });

Or you can resubmit every time the category is changed, the field if global will be reloaded along with any others:

Code:

var default_type = 1; // will default to this categories extra fields
$("#type").bind('change', function() {
    $("#response").show();
    $("#optResponse").hide();
    type = $('#type option:selected').val(); 
    if (type == '') { //every time select all is chosen it will return to the default category fields
        type = default_type;
    }
    $.ajax({
        url: 'ajax.php',
        data: 'action=extra_listing_fields&do=search§ion=' + type,
        type: 'post',
        success: function (msg) {
            $("#response").html(msg);
        }
    });
});
$("#type").trigger('change');