Programmatically selecting item in Dashcode list

Is their a way to programmatically select an item in a dashcode list with having the user click on the list? Something like:

var list = document.getE开发者_如何学JAVAlementById("list");
    list.select_item(3);

If it's just an HTML drop-down list (a "select" tag), then you can just set the "selectedIndex" property:

var list = document.getElementById("list");
list.selectedIndex = 3;