Hi there, I have this category jump menu which lists child cats and always 'selects' the current category archive as 'selected' or active. I want to add a first <select> option titled "-choose a city-" that's always at the top, but only selected if NOT on a listed child category, such as a page or the site home. How do I do this?
<form id="cities" method="post">
<?php
function replace_id_for_slug($option){
$categories = get_categories("hierarchical=1&echo=0&child_of=33");
preg_match('/value="(\d*)"/', $option[0], $matches);
$id = $matches[1];
$slug = "";
foreach($categories as $category){
if($category->cat_ID == $id){
$slug = $category->slug;
}
}
return preg_replace("/value=\"(\d*)\"/", "value=\"$slug\"", $option[0]);
}
$select = wp_dropdown_categories("hierarchical=1&echo=0&child_of=33&depth=1&orderby=title");
$select = preg_replace_callback("#<option[^>]*>[^<]*</option>#", "replace_id_for_slug", $select);
echo $select;
?>
<script type="text/javascript"><!--
var dropdown = document.getElementById("cat");
function onCatChange() {
if ( dropdown.options[dropdown.selectedIndex].value != -1 ) {
location.href = "<?php echo get_option('home');?>/category/uk/"+dropdown.options[dropdown.selectedIndex].value;
}
}
dropdown.onchange = onCatChange;
--></script>
</form>