how to dynamically disable/enable button using javascript

[yu169409]

hi there
in my form i have a button, list box, and textarea controls. initially the button is disabled, any change in listbox or textarea will enable the button. how can i use javascript to accomplish this? i understand that those controls have onChange() method. thanks for ur help.

[Jona]

document.forms["name_of_form"].name_of_button.disabled=true;


[J]ona