Making a JQuery button act as a dropdown

Question

Take this JQuery UI Button sample as a reference: http://jqueryui.com/demos/button/#splitbutton

Now, how would you implement that dropdown when click the small button? M

Answer 1

I finally made it and looks like the picture above.
I blogged about it here and I'm also posting all the code bellow.
Please refer to the blog post for deeper explanation.

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JavaScript