diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/NewAllocationSelector.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/NewAllocationSelector.java
index 7dcded557..9e6257450 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/NewAllocationSelector.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/NewAllocationSelector.java
@@ -153,7 +153,7 @@ public class NewAllocationSelector extends AllocationSelector {
 
     public NewAllocationSelectorController getController() {
         return (NewAllocationSelectorController) this
-                .getVariable("controller", true);
+                .getVariable("selectorController", true);
     }
 
     public void allowSelectMultipleResources(boolean multiple) {
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/ResourceAllocationController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/ResourceAllocationController.java
index 2f7b5184f..208fd341f 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/ResourceAllocationController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/ResourceAllocationController.java
@@ -152,6 +152,7 @@ public class ResourceAllocationController extends GenericForwardComposer {
         allResourcesPerDay.setWidth("80px");
         newAllocationSelector.setLimitingResourceFilter(false);
         newAllocationSelectorCombo.setLimitingResourceFilter(false);
+        newAllocationSelector.allowSelectMultipleResources(true);
         initAllocationLabels();
         makeReadyInputsForCalculationTypes();
     }
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/search/NewAllocationSelectorController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/search/NewAllocationSelectorController.java
index 4bd2da73d..669732927 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/search/NewAllocationSelectorController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/search/NewAllocationSelectorController.java
@@ -61,8 +61,9 @@ import org.zkoss.zul.TreeitemRenderer;
 import org.zkoss.zul.Treerow;
 
 /**
- * Controller for searching for {@link Resource}
  * @author Diego Pino Garcia <dpino@igalia.com>
+ *
+ *         Controller for searching for {@link Resource}
  */
 public class NewAllocationSelectorController extends
         AllocationSelectorController {
@@ -88,16 +89,13 @@ public class NewAllocationSelectorController extends
     @Override
     public void doAfterCompose(Component comp) throws Exception {
         super.doAfterCompose(comp);
-        comp.setVariable("controller", this, true);
-        initController();
+        comp.setVariable("selectorController", this, true);
+        initializeComponents();
     }
 
-    /**
-     * Initializes ZUL components
-     */
-    private void initController() {
-        doInitialSelection();
-        // Add event listener onSelect to criterionsTree widget
+    private void initializeComponents() {
+
+        // Initialize criteria tree
         if (criterionsTree != null) {
             criterionsTree.addEventListener("onSelect", new EventListener() {
 
@@ -106,15 +104,13 @@ public class NewAllocationSelectorController extends
                 @Override
                 public void onEvent(Event event) throws Exception {
                     searchResources("", getSelectedCriterions());
+                    showSelectedAllocations();
                 }
             });
         }
-
-        // Initialize components
         criterionsTree.setTreeitemRenderer(criterionRenderer);
-        listBoxResources.setItemRenderer(getListitemRenderer());
 
-        refreshListBoxResources();
+        // Initialize found resources box
         listBoxResources.addEventListener(Events.ON_SELECT,
                 new EventListener() {
 
@@ -123,8 +119,12 @@ public class NewAllocationSelectorController extends
                 if (isGenericType()) {
                     returnToSpecificDueToResourceSelection();
                 }
+                showSelectedAllocations();
             }
         });
+        listBoxResources.setItemRenderer(getListitemRenderer());
+
+        // Initialize radio group of selector types
         allocationTypeSelector.addEventListener(Events.ON_CHECK,
                 new EventListener() {
 
@@ -136,6 +136,24 @@ public class NewAllocationSelectorController extends
                         showSelectedAllocations();
                     }
                 });
+        doInitialSelection();
+    }
+
+    private void showSelectedAllocations() {
+        allocationSelectedItems.setValue(buildSelectedAllocationsString());
+    }
+
+    private String buildSelectedAllocationsString() {
+        if (currentAllocationType == AllocationType.SPECIFIC) {
+            List<String> result = new ArrayList<String>();
+            for (Resource each : getSelectedResourcesOnListbox()) {
+                result.add(each.getShortDescription());
+            }
+            return StringUtils.join(result, ",");
+        } else {
+            List<Criterion> criteria = getSelectedCriterions();
+            return currentAllocationType.asCaption(criteria);
+        }
     }
 
     private List<? extends Resource> getAllResources() {
@@ -158,6 +176,14 @@ public class NewAllocationSelectorController extends
         refreshListBoxResources();
     }
 
+    private void refreshListBoxResources() {
+        refreshListBoxResources(getAllResources());
+    }
+
+    private void refreshListBoxResources(List<? extends Resource> resources) {
+        listBoxResources.setModel(new SimpleListModel(resources));
+    }
+
     private void returnToSpecificDueToResourceSelection() {
         currentAllocationType = AllocationType.SPECIFIC;
         List<Criterion> criteria = getSelectedCriterions();
@@ -261,10 +287,6 @@ public class NewAllocationSelectorController extends
         return result;
     }
 
-    private void refreshListBoxResources(List<? extends Resource> resources) {
-        listBoxResources.setModel(new SimpleListModel(resources));
-    }
-
     public ResourceListRenderer getListitemRenderer() {
         return resourceListRenderer;
     }
@@ -281,10 +303,6 @@ public class NewAllocationSelectorController extends
         doInitialSelection();
     }
 
-    private void refreshListBoxResources() {
-        refreshListBoxResources(getAllResources());
-    }
-
     public List<Resource> getSelectedWorkers() {
         if (isGenericType()) {
             return allResourcesShown();
@@ -475,22 +493,8 @@ public class NewAllocationSelectorController extends
         listBoxResources.setMultiple(multiple);
     }
 
-    public void showSelectedAllocations() {
-        allocationSelectedItems.setValue(buildSelectedAllocationsString());
-    }
-
-    private String buildSelectedAllocationsString() {
-
-        if (currentAllocationType == AllocationType.SPECIFIC) {
-            List<String> result = new ArrayList<String>();
-            for (Resource each : getSelectedResourcesOnListbox()) {
-                result.add(each.getShortDescription());
-            }
-            return StringUtils.join(result, ",");
-        } else {
-            List<Criterion> criterions = getSelectedCriterions();
-            return currentAllocationType.asCaption(criterions);
-        }
+    public boolean isAllowSelectMultipleResources() {
+        return listBoxResources.isMultiple();
     }
 
 }
diff --git a/navalplanner-webapp/src/main/webapp/resources/search/allocation_selector.zul b/navalplanner-webapp/src/main/webapp/resources/search/allocation_selector.zul
index 04ef6cd74..2c86bdd1a 100644
--- a/navalplanner-webapp/src/main/webapp/resources/search/allocation_selector.zul
+++ b/navalplanner-webapp/src/main/webapp/resources/search/allocation_selector.zul
@@ -24,45 +24,46 @@
     ]]>
     </zscript>
 
-
-<vbox apply="${selectorController}">
+    <vbox apply="${selectorController}">
 
         <groupbox style="margin-top: 5px" closable="false">
-        <caption label="${i18n:_('Select criteria set or specific resources for allocation')}" />
 
+            <caption label="${i18n:_('Select criteria set or specific resources for allocation')}" />
 
-    <hbox>
-        <vbox sclass="allocation-criterion-selector">
-            <!-- Criteria -->
+            <hbox>
 
-            <tree id="criterionsTree" width="420px"
-                height="340px" vflex="true" multiple="true"
-                model="@{selectorController.criterions}"
-                zclass="z-dottree" style="margin-top:5px;margin-bottom:5px;">
-                <attribute name="onSelect"><![CDATA[ selectorController.showSelectedAllocations() ]]></attribute>
-                <treecols>
-                    <treecol label="${i18n:_('Criteria')}" tooltiptext="${i18n:_('Criteria (Hold CTRL for multiple selection)')}" />
-                </treecols>
-            </tree>
-        </vbox>
+                <!-- Criteria -->
+                <vbox sclass="allocation-criterion-selector">
 
-        <vbox>
+                    <tree id="criterionsTree" width="420px"
+                            height="340px" vflex="true" multiple="true"
+                            model="@{selectorController.criterions}"
+                            zclass="z-dottree" style="margin-top:5px;margin-bottom:5px;">
+                        <treecols>
+                            <treecol label="${i18n:_('Criteria')}" tooltiptext="${i18n:_('Criteria (Hold CTRL for multiple selection)')}" />
+                        </treecols>
+                   </tree>
 
-            <!--Matchings -->
-            <listbox id="listBoxResources" width="420px"
-                vflex="true" multiple="true" height="340px"
-                itemRenderer="@{selectorController.listitemRenderer}" style="margin:5px;"
-                onFocus="selectorController.showSelectedAllocations()" >
-                <attribute name="onSelect"><![CDATA[
-                    selectorController.showSelectedAllocations();
-                     ]]></attribute>
-                <listhead>
-                    <listheader label="${i18n:_('Found resources')}" tooltiptext="${i18n:_('Resources matching selected criteria')}" sort="auto" />
-                </listhead>
-            </listbox>
-        </vbox>
-    </hbox>
+                </vbox>
 
+                <!--Matchings -->
+                <vbox>
+
+                    <listbox id="listBoxResources" width="420px" height="340px"
+                            vflex="true" multiple="@{selectorController.allowSelectMultipleResources}" style="margin:5px;"
+                            itemRenderer="@{selectorController.listitemRenderer}" >
+                        <listhead>
+                            <listheader label="${i18n:_('Found resources')}"
+                                    tooltiptext="${i18n:_('Resources matching selected criteria')}" sort="auto" />
+                        </listhead>
+                    </listbox>
+
+                </vbox>
+
+            </hbox>
+
+            <!-- Assignment Type -->
+            <hbox>
                 <grid fixedLayout="true">
                     <columns>
                         <column width="200px" />
@@ -70,24 +71,30 @@
                     </columns>
                     <rows>
                         <row>
-        <hbox><label value="${i18n:_('Assignment Type')}" /><image sclass="context-help-popup" height="15px" src="/common/img/axuda.gif" tooltip="allocation-type-popup" /></hbox>
-        <radiogroup id="allocationTypeSelector" orient="vertical" onSelect="selectorController.showSelectedAllocations()">
-            <radio forEach="${selectorController.allocationTypes}"
-                label="${each.name}" value="${each}" />
-        </radiogroup>
-            </row>
-            <row>
-            <label value="${i18n:_('Current selection')}" />
-            <label id="allocationSelectedItems" value="${i18n:_('[generic all workers]')}" />
-            </row>
-        </rows></grid>
+                            <hbox>
+                                <label value="${i18n:_('Assignment Type')}" />
+                                <image src="/common/img/axuda.gif" tooltip="allocation-type-popup"
+                                        sclass="context-help-popup" height="15px" />
+                            </hbox>
+                            <radiogroup id="allocationTypeSelector" orient="vertical">
+                                <radio forEach="${selectorController.allocationTypes}"
+                                        label="${each.name}" value="${each}" />
+                            </radiogroup>
+                        </row>
+                        <row>
+                            <label value="${i18n:_('Current selection')}" />
+                            <label id="allocationSelectedItems" value="${i18n:_('[generic all workers]')}" />
+                        </row>
+                    </rows>
+                </grid>
+            </hbox>
 
-</groupbox>
+        </groupbox>
 
+        <popup id="allocation-type-popup" width="700px" >
+            <iframe id="iframe" src="/help/${i18n:_('en')}/08-asignacion.html" width="100%" />
+        </popup>
 
-    <popup id="allocation-type-popup" width="700px" >
-        <iframe id="iframe" src="/help/${i18n:_('en')}/08-asignacion.html" width="100%" />
-    </popup>
+    </vbox>
 
-</vbox>
 </zk>