OnChange affected to AutoComplete feature of IE

[lnthach]

I have designed a small asp form that includues a text box "Name" and a label "Msg". If user input "Name" and press "Tab" key or press "Enter" key, the form will be submit. Then Server side will set value of label with message "Hello <Name>".
In textbox "Name", I catch "OnChange" event to submit the form manually.

I found below issue:
1) In case user press "tab" key to submit the form, the input value of textbox "Name" is not saved to list of AutoComplete.
While, if user press "enter" to submit the form, the input value of textbox "Name" is save to list of AutoComplete

Can you please support to solve the issue 1). I want input value of textbox is saved to list of AutoComplete after submit the form.

Thach