MediaWiki:Gadget-HotCat.js

 /** Import module *************************************************************
  *
  *  Description: Includes a raw wiki page as javascript or CSS, 
  *               used for including user made modules.
  *  Maintainers: [[User:TheDJ]]
  */
 importedScripts = {}; // object keeping track of included scripts, so a script ain't included twice
 function importScript( page ) {
     if( importedScripts[page] ) {
         return;
     }
     importedScripts[page] = true;
     var url = wgScriptPath
             + '/index.php?title='
             + encodeURIComponent( page.replace( / /g, '_' ) )
             + '&action=raw&ctype=text/javascript';
     var scriptElem = document.createElement( 'script' );
     scriptElem.setAttribute( 'src' , url );
     scriptElem.setAttribute( 'type' , 'text/javascript' );
     document.getElementsByTagName( 'head' )[0].appendChild( scriptElem );
 }

 importScript('User:TheDJ/Gadget-HotCat.js')