Mx 2004 combobox

Can someone help a newbie make the subject combobox editable/persistent by the

user without any other form/screen used to populate it.

I merely need the user’s entries (if unique) to persist.

Here’s my vague pseudo:

//add to combobox

function add();

yourItem = myComboBox.getSelectedItem().label;
trace("You selected the item " + yourItem );

for (i=0; i < array.length; i++)
if (array* != yourItem)

{
	yourItem.addItemAt[0, "yourItem"]

	else
	break;

}

I can’t find adeqaute documentation anywhere.