Populating combobox through actionscript

programming flash
1

hello and to the point, I can populate the combobox by using this AS:

import mx.controls.ComboBox;
 myComboBox.removeAll();
 myComboBox.addItem("Macromedia","http://www.macromedia.com/");
 myComboBox.addItem("Microsoft", "http://www.microsoft.com/");
 myComboBox.addItem("Sams", "http://www.samspublishing.com/");

BUT, the links are not working, I´m not redirected, what am I missing?

Thanks !!