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diff --git a/sca-cpp/branches/lightweight-sca/modules/js/htdocs/scdl.js b/sca-cpp/branches/lightweight-sca/modules/js/htdocs/scdl.js
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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+/**
+ * SCDL parsing functions.
+ */
+var scdl = {};
+
+/**
+ * Returns a composite element.
+ */
+scdl.composite = function(l) {
+    var cs = namedElementChildren("'composite", l);
+    if (isNil(cs))
+        return cs;
+    return car(cs);
+};
+
+/**
+ * Returns a list of components in a composite.
+ */
+scdl.components = function(l) {
+    var cs = namedElementChildren("'composite", l);
+    if (isNil(cs))
+        return cs;
+    return namedElementChildren("'component", car(cs));
+};
+
+/**
+ * Returns a list of service promotions in a composite.
+ */
+scdl.promotions = function(l) {
+    var cs = namedElementChildren("'composite", l);
+    if (isNil(cs))
+        return cs;
+    return namedElementChildren("'service", car(cs));
+};
+
+/**
+ * Returns the target of a service promotion.
+ */
+scdl.promote = function(l) {
+    var puri = namedAttributeValue("'promote", l);
+    if (isNil(puri))
+        return puri;
+    return car(tokens(puri));
+};
+
+/**
+ * Returns the name of a component, componentType, service or reference.
+ */
+scdl.name = function(l) {
+    return namedAttributeValue("'name", l);
+};
+
+/**
+ * Returns the description of a component, componentType, service or reference.
+ */
+scdl.documentation = function(l) {
+    var d = namedElementChildren("'documentation", l);
+    if (isNil(d))
+        return null;
+    if (!elementHasValue(car(d)))
+        return null;
+    var v = elementValue(car(d));
+    return v;
+};
+
+/**
+ * Returns the title of a component or componentType.
+ */
+scdl.title = function(l) {
+    return namedAttributeValue("'title", l);
+};
+
+/**
+ * Returns the display style of a component, componentType, reference or property.
+ */
+scdl.style = function(l) {
+    return namedAttributeValue("'style", l);
+};
+
+/**
+ * Returns the color of a component or componentType.
+ */
+scdl.color = function(l) {
+    return namedAttributeValue("'color", l);
+};
+
+/**
+ * Returns the x position of a component.
+ */
+scdl.x = function(l) {
+    return namedAttributeValue("'x", l);
+};
+
+/**
+ * Returns the y position of a component.
+ */
+scdl.y = function(l) {
+    return namedAttributeValue("'y", l);
+};
+
+/**
+ * Returns the implementation of a component.
+ */
+scdl.implementation = function(l) {
+    function filterImplementation(v) {
+        return isElement(v) && cadr(v).match("implementation.") != null;
+    }
+
+    var n = filter(filterImplementation, l);
+    if (isNil(n))
+        return null;
+    return car(n);
+};
+
+/**
+ * Returns the type of a component or componentType implementation.
+ */
+scdl.implementationType = function(l) {
+    return elementName(l).substring(1);
+};
+
+/**
+ * Returns the URI of a service, reference or implementation.
+ */
+scdl.uri = function(l) {
+    return namedAttributeValue("'uri", l);
+};
+
+/**
+ * Returns the align attribute of a service or reference.
+ */
+scdl.align = function(l) {
+    return namedAttributeValue("'align", l);
+};
+
+/**
+ * Returns the visible attribute of a service or reference.
+ */
+scdl.visible = function(l) {
+    return namedAttributeValue("'visible", l);
+};
+
+/**
+ * Returns the clonable attribute of a reference.
+ */
+scdl.clonable = function(l) {
+    return namedAttributeValue("'clonable", l);
+};
+
+/**
+ * Returns a list of services in a component or componentType.
+ */
+scdl.services = function(l) {
+    return namedElementChildren("'service", l);
+};
+
+/**
+ * Returns a list of references in a component or componentType.
+ */
+scdl.references = function(l) {
+    return namedElementChildren("'reference", l);
+};
+
+/**
+ * Returns a list of bindings in a service or reference.
+ */
+scdl.bindings = function(l) {
+    function filterBinding(v) {
+        return isElement(v) && cadr(v).match("binding.") != null;
+    }
+
+    return filter(filterBinding, l);
+};
+
+/**
+ * Returns the type of a binding.
+ */
+scdl.bindingType = function(l) {
+    return elementName(l).substring(1);
+};
+
+/**
+ * Returns the target of a reference.
+ */
+scdl.target = function(l) {
+    function targetURI() {
+        function bindingsTarget(l) {
+            if (isNil(l))
+                return null;
+            var u = scdl.uri(car(l));
+            if (!isNil(u))
+                return u;
+            return bindingsTarget(cdr(l));
+        }
+    
+        var t = namedAttributeValue("'target", l);
+        if (!isNil(t))
+            return t;
+        return bindingsTarget(scdl.bindings(l));
+    }
+    var turi = targetURI();
+    if (isNil(turi))
+        return turi;
+    return car(tokens(turi));
+};
+
+/**
+ * Returns a list of properties in a component or componentType.
+ */
+scdl.properties = function(l) {
+    return namedElementChildren("'property", l);
+};
+
+/**
+ * Returns the value of a property.
+ */
+scdl.propertyValue = function(l) {
+    if (!elementHasValue(l))
+        return '';
+    return elementValue(l);
+};
+
+/**
+ * Convert a list of elements to a name -> element assoc list.
+ */
+scdl.nameToElementAssoc = function(l) {
+    if (isNil(l))
+        return l;
+    return cons(mklist(scdl.name(car(l)), car(l)), scdl.nameToElementAssoc(cdr(l)));
+};
+