jQuery selector cache with reset (original: http://eamann.com/tech/selector-caching-jquery/). If commenting, please ping me on Twitter, same username.

$-cache-with-find.js

function Selector_Cache() {
	var elementCache = {};

	var get_from_cache = function( selector, $ctxt, reset ) {

		if ( 'boolean' === typeof $ctxt ) {
			reset = $ctxt;
			$ctxt = false;
		}
		var cacheKey = $ctxt ? $ctxt.selector + ' ' + selector : selector;

		if ( undefined === elementCache[ cacheKey ] || reset ) {
			elementCache[ cacheKey ] = $ctxt ? $ctxt.find( selector ) : jQuery( selector );
		}

		return elementCache[ cacheKey ];
	};

	get_from_cache.elementCache = elementCache;
	return get_from_cache;
}

var cache = new Selector_Cache();

// get selector
cache( '#selector' );

// get selector and reset cache
cache( '#selector', true );

// get selector with $context
cache( 'img', cache( '#selector' ) );

// get selector with $context, and reset
cache( 'img', cache( '#selector' ), true );

// get selector with $context, and reset both selector and $context (whoa)
cache( 'img', cache( '#selector', true ), true );

// Manually add a selector
cache.elementCache['#another-id'] = jQuery( document.getElementById( 'another-id' ) );
// Then use it:
cache( '#another-id' );

@afanjul updated, thanks!
@mecklund, see if the changes made based on @afanjul's suggestion resolve your issue.

I have the same problem as @bradyvercher. If context is a simple jQuery selector like $( '#container' ) then it's good. But if it's complicated like $( '#container' ).next() then the code that retrieves context's key won't work reliably.