Automate throgh selenium: AJAX page refresh when selected an option in combo box.

Hi folks,

Am trying to automate my application using selenium IDE. Am struck a t a place, where i have to automate a combo box. Upon selection of an item from the combo box, it displays some additional text boxes specified for that selected item. I am unable to play back this functionality. I have also tried using fire event command. but didnt work.

am using the following values in the IDE to pick the value i need from the drop down.
Command: type
Target: ID of the combobox
Value: Value i need to select from the combo box.

Any help is appreciated.

In my Selenium script,I used the commands below to select the value from the combo box,

1.command: mouseDown
target: Id of combo box

2.command: mouseDown
target: combo box item

3.command: mouseUp
target: combo box item