jQuery require function

jquery.require.js

(function($) {
    $.require = function() {
        $.each(arguments, function(i, script) {
            if ($('head script[src="' + script + '"]').length == 0) {
                document.write('<script type="text/javascript" src="' + script + '"></script>');
            }
        });
    };
})(jQuery);

/* usage:
  $.require('/path/to/your.js');
  $.require('/multiple.js', '/paths/together.js');

  Weirdly, doing dom manipulation didn't work in Chrome.

  p.s. this is likely to be superseded by jQuery proper in the near future.
*/

License.txt

/**
 * jQuery.require - Require/include plugin for including necessary scripts
 *
 * Copyright (c) 2010, James Gregory (james@jagregory.com)
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that
 * the following conditions are met:
 *
 *     o Redistributions of source code must retain the above copyright notice, this list of conditions and the
 *       following disclaimer.
 *     o Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
 *       following disclaimer in the documentation and/or other materials provided with the distribution.
 *     o Neither the name of the Proof of Concept nor the names of its contributors may be used to endorse or promote
 *       products derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 **/

Usage:
$.require('/path/to/your.js');
$.require('/multiple.js', '/paths/together.js');

Weirdly, doing dom manipulation didn't work in Chrome.

p.s. this is likely to be superseded by jQuery proper in the near future.

Stuck a license in for anyone concerned by that stuff. New BSD, do what you want with it but don't blame me if it doesn't work.