Please take a look at this fiddle:
JQ-UI sets first option as default. I don’t want it to be happened: instead I want to set HTML5 placeholder.
How can I set HTML 5 placeholder (instead of first available <option>) for these JS generated inputs?

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@Mohamed Meligy came with the same solution
http://jsfiddle.net/KA85s/8/
Though i used something else..
here is how it works when your input element is created with use jQuery to give it a placholder attribute and we are done 😀
** UPDATED **
http://jsfiddle.net/KA85s/19/
added custom default value 😀