Load on demand and jQuery

Despite the fact that it is necessary to minimize the number of http-requests, sometimes (or often, depending on the task) it is useful to download some of the “heavy” functionality only when it is really needed on the page.
JQuery has a mechanism to do this - $.getS cript , however, it has several disadvantages:

• the scripts already loaded or loaded at the moment are not remembered, when you re-request, they are loaded again.
• multiple scripts cannot be specified at once
• the cache is turned off (type parameters are forcibly assigned to each urla ?_=1242843920520 ). Why it was so hard done, remains a mystery to me.
• a callback cannot be given a context (this is generally a jQuery callback disease).

I had to write a small plugin, devoid of the above disadvantages:

$.requireS cript( url , callback , [ context ], [ options ])
Where:
url - the URL of the loaded script (maybe an array of URLs)
callback - callback function that is called after loading scripts
context - the context in which the callback function is called (optional)
options - parameters; currently only one parameter is supported - parallel , indicating whether parallel loading should be used for several scripts ( true by default)


Maybe someone will come in handy. Download and try with code.google .
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UPDATE: according to the comments in the comments, $.loadS cript renamed to $.requireS cript , and now you can specify several URLs at once.