adding a item to listbox by javascript [modified]

[N Q H]

Hi, I have a form, and in this form, there's a button and a listbox. The question is how to add a item to the listbox using javascript when the user clicks on the button. This is my thinking but it doesn't work.

var lb = document.getElementById('mylist');
lb.options.....(what will be here?) :doh:

Thanks in advance

Nguyen Quang Huy

modified on Wednesday, April 1, 2009 4:16 AM

[mrMercury]

Try the following:

<script language="javascript">
var lb = document.getElementById('mylist');
var option = document.createElement("option");
lb.options.add(option);
option.text = "This is option one";
option.value = "1";
</script>

[N Q H]

thank you very much, it works properly.

Nguyen Quang Huy