Topic: combobox filter

I want to filter the items in a combo box based on partial, case-insensitive strings in a text box in real time using javascript. I don't know how to do it tho.

I want to do something like this:

[FILTER FIELD]
[COMBO BOX]

Initially the combo box has values: Asia, Africa, Americas, Europe.

When I type "a" into the search field the combo box should display only: Asia, Africa, Americas. When I type "as" it should display: Asia, Americas. And when I type "" again it should display all the initial options.

help!

simple, keep all you key=>value mappings in an object,

then

comboBox.options = []; // or similar, don't know exactly. Clear the combobox anyhow.
for (key in myEntries)
{
   if (shouldBeShown(key))
     comboBox.options[length(comboBox.options)] = ...
}

call that onChange, and you're done.

thanks
here's what I have so far

now what would be the best way to pass all the selected items' values as post/get parameters if I can't change how the submit button functions

I'm thinking maybe I could hide a duplicate of the selected items list and keep all the items selected in there. Any better ideas?

I do not understand your question.
SelectedItems.values should already be transmitted as $_POST['selectedItems']...

nope, i don't want the items that are actually selected, i want all the items that are in the left combobox that is named "selected items"

if you can't assign an onsumbit handler (which is what I'd do),
you'll have to update a hidden variable whenever the contens changes,
perhaps simply by
x = new Array();
for (option in .selectedItems) //use appropriate code here
x[length(x)] = option;
hiddenField.value = x.join(",");

provided you don't have any ',' in your values