Index: wp-includes/js/scriptaculous/wp-scriptaculous.js
===================================================================
--- wp-includes/js/scriptaculous/wp-scriptaculous.js	(revision 0)
+++ wp-includes/js/scriptaculous/wp-scriptaculous.js	(revision 0)
@@ -0,0 +1,40 @@
+// Copyright (c) 2005 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
+// 
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+
+var Scriptaculous = {
+  Version: '1.6.1',
+  require: function(libraryName) {
+    // inserting via DOM fails in Safari 2.0, so brute force approach
+    document.write('<script type="text/javascript" src="'+libraryName+'"></script>');
+  },
+  load: function() {
+    if((typeof Prototype=='undefined') || 
+       (typeof Element == 'undefined') || 
+       (typeof Element.Methods=='undefined') ||
+       parseFloat(Prototype.Version.split(".")[0] + "." +
+                  Prototype.Version.split(".")[1]) < 1.5)
+       throw("script.aculo.us requires the Prototype JavaScript framework >= 1.5.0");
+    
+    $A(document.getElementsByTagName("script")).findAll( function(s) {
+      return (s.src && s.src.match(/scriptaculous\.js(\?.*)?$/))
+    }).each( function(s) {
+      var path = s.src.replace(/scriptaculous\.js(\?.*)?$/,'');
+      var includes = s.src.match(/\?.*load=([a-z,]*)/);
+      if ( includes )
+       includes[1].split(',').each(
+       function(include) { Scriptaculous.require(path+include+'.js') });
+    });
+  }
+}
+
+Scriptaculous.load();
Index: wp-includes/script-loader.php
===================================================================
--- wp-includes/script-loader.php	(revision 4672)
+++ wp-includes/script-loader.php	(working copy)
@@ -22,10 +22,13 @@
 		$this->add( 'autosave', '/wp-includes/js/autosave.js.php', array('prototype', 'sack'), '4508');
 		$this->add( 'wp-ajax', '/wp-includes/js/wp-ajax-js.php', array('prototype'), '4459');
 		$this->add( 'listman', '/wp-includes/js/list-manipulation-js.php', array('wp-ajax', 'fat'), '4583');
-		$this->add( 'scriptaculous', '/wp-includes/js/scriptaculous/scriptaculous.js', array('prototype'), '1.6.1');
-		$this->add( 'scriptaculous-dragdrop', '/wp-includes/js/scriptaculous/scriptaculous.js?load=builder,dragdrop', array('prototype'), '1.6.1');
-		$this->add( 'scriptaculous-slider', '/wp-includes/js/scriptaculous/scriptaculous.js?load=slider,effects', array('prototype'), '1.6.1');
-		$this->add( 'scriptaculous-controls', '/wp-includes/js/scriptaculous/scriptaculous.js?load=controls', array('prototype'), '1.6.1');
+		$this->add( 'scriptaculous-root', '/wp-includes/js/scriptaculous/wp-scriptaculous.js', array('prototype'), '1.6.1');
+		$this->add( 'scriptaculous-builder', '/wp-includes/js/scriptaculous/builder.js', array('scriptaculous-root'), '1.6.1');
+		$this->add( 'scriptaculous-dragdrop', '/wp-includes/js/scriptaculous/dragdrop.js', array('scriptaculous-builder'), '1.6.1');
+		$this->add( 'scriptaculous-effects', '/wp-includes/js/scriptaculous/effects.js', array('scriptaculous-root'), '1.6.1');
+		$this->add( 'scriptaculous-slider', '/wp-includes/js/scriptaculous/slider.js', array('scriptaculous-effects'), '1.6.1');
+		$this->add( 'scriptaculous-controls', '/wp-includes/js/scriptaculous/controls.js', array('scriptaculous-root'), '1.6.1');
+		$this->add( 'scriptaculous', '', array('scriptaculous-dragdrop', 'scriptaculous-slider', 'scriptaculous-controls'), '1.6.1');
 		$this->add( 'cropper', '/wp-includes/js/crop/cropper.js', array('scriptaculous-dragdrop'), '1');
 		if ( is_admin() ) {
 			$this->add( 'dbx-admin-key', '/wp-admin/dbx-admin-key-js.php', array('dbx'), '3651' );
@@ -70,11 +73,14 @@
 			elseif ( is_array($handles[$handle]) )
 				$this->_print_scripts( $handles[$handle] );
 			if ( !in_array($handle, $this->printed) && isset($this->scripts[$handle]) ) {
-				$ver = $this->scripts[$handle]->ver ? $this->scripts[$handle]->ver : $wp_db_version;
-				if ( isset($this->args[$handle]) )
-					$ver .= '&amp;' . $this->args[$handle];
-				$src = 0 === strpos($this->scripts[$handle]->src, 'http://') ? $this->scripts[$handle]->src : get_option( 'siteurl' ) . $this->scripts[$handle]->src;
-				echo "<script type='text/javascript' src='$src?ver=$ver'></script>\n";
+				if ( $this->scripts[$handle]->src ) { // Else it defines a group.
+					$ver = $this->scripts[$handle]->ver ? $this->scripts[$handle]->ver : $wp_db_version;
+					if ( isset($this->args[$handle]) )
+						$ver .= '&amp;' . $this->args[$handle];
+					$src = 0 === strpos($this->scripts[$handle]->src, 'http://') ? $this->scripts[$handle]->src : get_option( 'siteurl' ) . $this->scripts[$handle]->src;
+					$src = add_query_arg('ver', $ver, $src);
+					echo "<script type='text/javascript' src='$src'></script>\n";
+				}
 				$this->printed[] = $handle;
 			}
 		}