[solved] Can't get custom options to update from default

[solved] Can't get custom options to update from default

I have script ( http://jsbin.com/ifoke5/31) that adds some extra capabilities to the dialog widget. Everything works fine on default settings but if i use the following:

$('...').dialog('option', { 'scrolling': false});

the default value is still assigned
//option.scrolling: auto

What am i missing?

~Thanks in advance.