Remove selected option with jQuery

1. Select a value HTML CSS JavaScript jQuery Dojo MooTools Prototype Backbone.js Ember.js Node.js pre-selected
2. Select a value HTML CSS JavaScript jQuery Dojo MooTools Prototype Backbone.js Ember.js Node.js
3. Select a value HTML CSS JavaScript jQuery Dojo MooTools Prototype Backbone.js Ember.js Node.js
4. Select a value HTML CSS JavaScript jQuery Dojo MooTools Prototype Backbone.js Ember.js Node.js
5. Select a value HTML CSS JavaScript jQuery Dojo MooTools Prototype Backbone.js Ember.js Node.js
6. Select a value HTML CSS JavaScript jQuery Dojo MooTools Prototype Backbone.js Ember.js Node.js
7. Select a value HTML CSS JavaScript jQuery Dojo MooTools Prototype Backbone.js Ember.js Node.js not affected by the script

Purpose of this script is to remove an already choosen option from the other <select> boxes. It is possible to decide which value is considered default (and therefore will not be deleted) in the script options.