How do we upload our own javascript file?

Further details.

For example, how do we tell Lithium to include another js file in the following code front end code?

LITHIUM.RenderedScripts = [
"jquery.function-utils-1.0.js",
"jquery.delayToggle-1.0.js",
"Components.js",
"jquery.css-data-1.0.js",
"jquery.js",
"jquery.ui.core.js",
"jquery.ui.resizable.js",
"jquery.scrollTo.js",
"jquery.masonry-2.1.03.js",
"jquery.ui.mouse.js",
"Video.js",
"CustomEvent.js",
"json2.js",
"jquery.clone-position-1.0.js",
"jquery.history.js",
"Lithium.js",
"control.js",
"Tooltip.js",
"jquery.blockui.js",
"jquery.ui.dialog.js",
"jquery.autocomplete.js",
"jquery.dotdotdot-1.5.0.js",
"jquery.iframe-transport.js",
"SearchForm.js",
"jquery.iframe-shim-1.0.js",
"Sandbox.js",
"jquery.fileupload.js",
"FacebookCommon.js",
"jquery.lithium-selector-extensions.js",
"jquery.appear-1.1.1.js",
"FormActions.js",
"AjaxFeedback.js",
"Forms.js",
"Resize.js",
"jquery.ui.widget.js",
"AutoComplete.js",
"SpoilerToggle.js",
"AC_RunActiveContent.js",
"Text.js",
"Loader.js",
"SearchAutoCompleteToggle.js",
"jquery.hoverIntent-r6.js",
"Events.js",
"jquery.ui.position.js",
"Cache.js",
"jquery.effects.core.js",
"jquery.tools.tooltip-1.2.5.js",
"jquery.js",
"jquery.ajax-cache-response-1.0.js",
"jquery.tmpl-1.1.1.js",
"ForceLithiumJQuery.js",
"Namespace.js",
"jquery.viewport-1.0.js",
"DeferredImages.js",
"jquery.ui.draggable.js",
"jquery.position-toggle-1.0.js",
"AjaxSupport.js",
"jquery.effects.slide.js",
"ElementMethods.js",
"NoConflict.js"
];// -->

Unfortunately there is no clean way to do this at the moment, however I have filed an improvement issue, thank you for the suggestion!