I just wrote a tinymce plugin, which has a drop down box. I can increase the size of the select box, by manipulating the CSS file of the advanced theme (the theme I am using). Is there any other way to do it, without changing the CSS? Say in the function of the javascript code that actually creates the select box?
Edit: I did set the max_width property while creating the listbox, in the createListBox function. But it only changes the width of the elements in the dropdown, not the drop down itself :(