Here is a quick tip on how to remove the dropdown history you get with modern browsers.
Normally they are good but if you are designing a form that uses Ajax to give you a drop down list the last thing you want is the browser adding a history.In this example I’m using WordPress and I’ve created an Ajax function for the search box, the problem is the browser keeps displaying a list of recent searches in it’s own drop down box. I don’t want to create my own search form so the answer is to add a small bit of Javascript (jQuery in this case).
jQuery(‘#s’).attr(‘autocomplete’,'off’);
WordPress gives the input box on the search form an ID of “s”
I Hope that helps.