On duty, I wrote a zeninput plugin for jQuery, many liked it, I decided to share it with the public.Users of our service often have to enter several amounts and in order not to bother them with a search for a calculator this plugin was written, it turns ordinary intput text into a calculator.


The plugin handles events like onready, onerror, onfocus, onblur, etc. so you can expand it as you like. Invalid characters are also blocked.
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Performance has been tested in IE6-8 and Browsers.
You can play with the plugin on the
page with demos , there is also a more detailed description of the events.
UPD1
dohlik :)