diff --git a/pom.xml b/pom.xml
index 0f1d7929..69d4df31 100644
--- a/pom.xml
+++ b/pom.xml
@@ -229,7 +229,12 @@
 			<artifactId>hibernate-search</artifactId>
 			<version>4.4.6.Final</version>
 		</dependency>
-		
+		<dependency>
+			<groupId>org.hibernate</groupId>
+			<artifactId>hibernate-ehcache</artifactId>
+			<version>4.2.8.Final</version>
+		</dependency>
+
 		<!-- ZK  -->
 		<dependency>
 			<groupId>org.zkoss.zk</groupId>
diff --git a/src/main/java/info/bukova/isspst/data/BaseData.java b/src/main/java/info/bukova/isspst/data/BaseData.java
index 8977fba5..b36b38d5 100644
--- a/src/main/java/info/bukova/isspst/data/BaseData.java
+++ b/src/main/java/info/bukova/isspst/data/BaseData.java
@@ -1,6 +1,9 @@
 package info.bukova.isspst.data;
 
-import java.util.Date;
+import org.hibernate.annotations.Cache;
+import org.hibernate.annotations.CacheConcurrencyStrategy;
+import org.hibernate.search.annotations.Indexed;
+import org.hibernate.search.annotations.IndexedEmbedded;
 
 import javax.persistence.Column;
 import javax.persistence.FetchType;
@@ -10,9 +13,7 @@ import javax.persistence.JoinColumn;
 import javax.persistence.ManyToOne;
 import javax.persistence.MappedSuperclass;
 import javax.persistence.Transient;
-
-import org.hibernate.search.annotations.Indexed;
-import org.hibernate.search.annotations.IndexedEmbedded;
+import java.util.Date;
 
 @MappedSuperclass
 @Indexed
@@ -29,10 +30,12 @@ public abstract class BaseData implements OwnedDataModel {
 	@ManyToOne(fetch=FetchType.LAZY)
 	@JoinColumn(name="OWNED_BY_ID")
 	@IndexedEmbedded
+	@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
 	private User ownedBy;
 	@ManyToOne(fetch=FetchType.LAZY)
 	@JoinColumn(name="MODIFIED_BY_ID")
 	@IndexedEmbedded
+	@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
 	private User modifiedBy;
 	@Transient
 	private boolean valid;
diff --git a/src/main/java/info/bukova/isspst/data/JobMapping.java b/src/main/java/info/bukova/isspst/data/JobMapping.java
index 811002bd..7478b885 100644
--- a/src/main/java/info/bukova/isspst/data/JobMapping.java
+++ b/src/main/java/info/bukova/isspst/data/JobMapping.java
@@ -1,5 +1,8 @@
 package info.bukova.isspst.data;
 
+import org.hibernate.annotations.Cache;
+import org.hibernate.annotations.CacheConcurrencyStrategy;
+
 import javax.persistence.Column;
 import javax.persistence.Entity;
 import javax.persistence.FetchType;
@@ -11,6 +14,7 @@ import javax.persistence.Table;
 
 @Entity
 @Table(name = "JOBMAPPING")
+@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
 public class JobMapping {
 
 	@Id
@@ -19,9 +23,11 @@ public class JobMapping {
 	private int id;
 	@ManyToOne(fetch = FetchType.EAGER)
 	@JoinColumn(name = "MEMBER_ID")
+	@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
 	private Member member;
 	@ManyToOne(fetch = FetchType.EAGER)
 	@JoinColumn(name = "ROLE_ID")
+	@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
 	private Role role;
 	
 	public JobMapping() {
diff --git a/src/main/java/info/bukova/isspst/data/Member.java b/src/main/java/info/bukova/isspst/data/Member.java
index ad976e3d..47383876 100644
--- a/src/main/java/info/bukova/isspst/data/Member.java
+++ b/src/main/java/info/bukova/isspst/data/Member.java
@@ -1,8 +1,9 @@
 package info.bukova.isspst.data;
 
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.List;
+import org.hibernate.annotations.Cache;
+import org.hibernate.annotations.CacheConcurrencyStrategy;
+import org.hibernate.annotations.LazyCollection;
+import org.hibernate.annotations.LazyCollectionOption;
 
 import javax.persistence.Column;
 import javax.persistence.Entity;
@@ -15,12 +16,13 @@ import javax.persistence.JoinColumn;
 import javax.persistence.JoinTable;
 import javax.persistence.ManyToMany;
 import javax.persistence.Transient;
-
-import org.hibernate.annotations.LazyCollection;
-import org.hibernate.annotations.LazyCollectionOption;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
 
 @Entity
 @Inheritance(strategy = InheritanceType.TABLE_PER_CLASS)
+@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
 public abstract class Member implements DataModel {
 
 	@Id
@@ -33,6 +35,7 @@ public abstract class Member implements DataModel {
 	@ManyToMany
 	@LazyCollection(LazyCollectionOption.TRUE)
 	@JoinTable(name="MEMBER_PARENT", joinColumns={@JoinColumn(name="MEMBER_ID")}, inverseJoinColumns={@JoinColumn(name="PARENT_ID")})
+	@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
 	private List<Workgroup> parents;
 	@Transient
 	private boolean valid;
diff --git a/src/main/java/info/bukova/isspst/data/Permission.java b/src/main/java/info/bukova/isspst/data/Permission.java
index a56619f1..d2ff07e4 100644
--- a/src/main/java/info/bukova/isspst/data/Permission.java
+++ b/src/main/java/info/bukova/isspst/data/Permission.java
@@ -1,6 +1,9 @@
 package info.bukova.isspst.data;
 
 import info.bukova.isspst.Constants;
+import org.hibernate.annotations.Cache;
+import org.hibernate.annotations.CacheConcurrencyStrategy;
+import org.springframework.security.core.GrantedAuthority;
 
 import javax.persistence.Column;
 import javax.persistence.Entity;
@@ -8,10 +11,9 @@ import javax.persistence.EnumType;
 import javax.persistence.Enumerated;
 import javax.persistence.Table;
 
-import org.springframework.security.core.GrantedAuthority;
-
 @Entity
 @Table(name="PERMISSION")
+@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
 public class Permission extends BaseSimpleData implements GrantedAuthority {
 
 	/**
diff --git a/src/main/java/info/bukova/isspst/data/Requirement.java b/src/main/java/info/bukova/isspst/data/Requirement.java
index 1aa97a38..565fbe99 100644
--- a/src/main/java/info/bukova/isspst/data/Requirement.java
+++ b/src/main/java/info/bukova/isspst/data/Requirement.java
@@ -1,9 +1,7 @@
 package info.bukova.isspst.data;
 
-import java.math.BigDecimal;
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.List;
+import org.hibernate.search.annotations.Indexed;
+import org.hibernate.search.annotations.IndexedEmbedded;
 
 import javax.persistence.CascadeType;
 import javax.persistence.Column;
@@ -11,9 +9,10 @@ import javax.persistence.Entity;
 import javax.persistence.FetchType;
 import javax.persistence.OneToMany;
 import javax.persistence.Table;
-
-import org.hibernate.search.annotations.Indexed;
-import org.hibernate.search.annotations.IndexedEmbedded;
+import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
 
 @Entity
 @Table(name = "REQUIREMENT")
diff --git a/src/main/java/info/bukova/isspst/data/RequirementBase.java b/src/main/java/info/bukova/isspst/data/RequirementBase.java
index a7e60f59..6451f5d4 100644
--- a/src/main/java/info/bukova/isspst/data/RequirementBase.java
+++ b/src/main/java/info/bukova/isspst/data/RequirementBase.java
@@ -1,6 +1,8 @@
 package info.bukova.isspst.data;
 
 import info.bukova.isspst.Constants;
+import org.hibernate.annotations.Cache;
+import org.hibernate.annotations.CacheConcurrencyStrategy;
 import org.hibernate.annotations.LazyCollection;
 import org.hibernate.annotations.LazyCollectionOption;
 import org.hibernate.search.annotations.Analyze;
@@ -24,6 +26,7 @@ import java.util.List;
 
 @MappedSuperclass
 @Indexed
+@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
 public class RequirementBase extends BaseData implements FilterableRequirement, SeasonsAware {
 	
 	@ManyToOne(fetch = FetchType.LAZY)
@@ -43,9 +46,11 @@ public class RequirementBase extends BaseData implements FilterableRequirement,
 	private String description;
 	@ManyToOne(fetch = FetchType.EAGER)
 	@JoinColumn(name = "CENTRE_ID")
+	@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
 	private Workgroup centre;
 	@ManyToOne(fetch = FetchType.EAGER)
 	@JoinColumn(name = "WORKGROUP_ID")
+	@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
 	private Workgroup workgroup;
 	@OneToMany(cascade = CascadeType.ALL, orphanRemoval = true)
 	@LazyCollection(LazyCollectionOption.TRUE)
@@ -56,6 +61,7 @@ public class RequirementBase extends BaseData implements FilterableRequirement,
 	private RequirementState state;
 	@ManyToOne(fetch = FetchType.EAGER)
 	@JoinColumn(name = "SEASON_ID")
+	@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
 	private Season season;
 	
 	public RequirementBase() {
diff --git a/src/main/java/info/bukova/isspst/data/Role.java b/src/main/java/info/bukova/isspst/data/Role.java
index ad7876cd..6a14fb03 100644
--- a/src/main/java/info/bukova/isspst/data/Role.java
+++ b/src/main/java/info/bukova/isspst/data/Role.java
@@ -1,9 +1,11 @@
 package info.bukova.isspst.data;
 
 import info.bukova.isspst.Constants;
-
-import java.util.ArrayList;
-import java.util.List;
+import org.hibernate.annotations.Cache;
+import org.hibernate.annotations.CacheConcurrencyStrategy;
+import org.hibernate.annotations.LazyCollection;
+import org.hibernate.annotations.LazyCollectionOption;
+import org.springframework.security.core.GrantedAuthority;
 
 import javax.persistence.Column;
 import javax.persistence.Entity;
@@ -11,13 +13,12 @@ import javax.persistence.JoinColumn;
 import javax.persistence.JoinTable;
 import javax.persistence.ManyToMany;
 import javax.persistence.Table;
-
-import org.hibernate.annotations.LazyCollection;
-import org.hibernate.annotations.LazyCollectionOption;
-import org.springframework.security.core.GrantedAuthority;
+import java.util.ArrayList;
+import java.util.List;
 
 @Entity
 @Table(name="ROLE")
+@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
 public class Role extends BaseSimpleData implements GrantedAuthority, DataModel {
 	
 	/**
@@ -32,6 +33,7 @@ public class Role extends BaseSimpleData implements GrantedAuthority, DataModel
 	@ManyToMany
 	@LazyCollection(LazyCollectionOption.FALSE)
 	@JoinTable(name="ROLE_PERMISSION", joinColumns={@JoinColumn(name="ROLE_ID")}, inverseJoinColumns={@JoinColumn(name="PERMISSION_ID")})
+	@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
 	private List<Permission> permissions;
 	@Column(name = "WORKGROUP")
 	private boolean workgroup;
diff --git a/src/main/java/info/bukova/isspst/data/Season.java b/src/main/java/info/bukova/isspst/data/Season.java
index b7e99e9e..de9eb515 100644
--- a/src/main/java/info/bukova/isspst/data/Season.java
+++ b/src/main/java/info/bukova/isspst/data/Season.java
@@ -1,5 +1,8 @@
 package info.bukova.isspst.data;
 
+import org.hibernate.annotations.Cache;
+import org.hibernate.annotations.CacheConcurrencyStrategy;
+
 import javax.persistence.Column;
 import javax.persistence.Entity;
 import javax.persistence.Table;
@@ -10,6 +13,7 @@ import java.util.Date;
  */
 @Entity
 @Table(name = "SEASON")
+@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
 public class Season extends BaseData {
 	@Column(name = "DESCRIPTION")
 	private String description;
diff --git a/src/main/java/info/bukova/isspst/data/TripBill.java b/src/main/java/info/bukova/isspst/data/TripBill.java
index 6db8d6d3..20957fc4 100644
--- a/src/main/java/info/bukova/isspst/data/TripBill.java
+++ b/src/main/java/info/bukova/isspst/data/TripBill.java
@@ -2,6 +2,8 @@ package info.bukova.isspst.data;
 
 import info.bukova.isspst.Constants;
 import info.bukova.isspst.storage.EntityWithAttachment;
+import org.hibernate.annotations.Cache;
+import org.hibernate.annotations.CacheConcurrencyStrategy;
 import org.hibernate.annotations.LazyCollection;
 import org.hibernate.annotations.LazyCollectionOption;
 import org.hibernate.search.annotations.Analyze;
@@ -31,6 +33,7 @@ public class TripBill extends BaseData implements EntityWithAttachment, SeasonsA
 
 	@OneToOne(fetch = FetchType.EAGER)
 	@JoinColumn(name = "REQUIREMENT_ID")
+	@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
 	private TripRequirement requirement;
 	@Column(name = "RESULT_MESSAGE_DATE")
 	private Date resultMessageDate;
@@ -72,6 +75,7 @@ public class TripBill extends BaseData implements EntityWithAttachment, SeasonsA
 	private Date paidDate;
 	@ManyToOne(fetch = FetchType.EAGER)
 	@JoinColumn(name = "SEASON_ID")
+	@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
 	private Season season;
 	
 	public TripBill() {
diff --git a/src/main/java/info/bukova/isspst/data/TripRequirement.java b/src/main/java/info/bukova/isspst/data/TripRequirement.java
index d40af017..a3f4098a 100644
--- a/src/main/java/info/bukova/isspst/data/TripRequirement.java
+++ b/src/main/java/info/bukova/isspst/data/TripRequirement.java
@@ -1,11 +1,13 @@
 package info.bukova.isspst.data;
 
 import info.bukova.isspst.storage.EntityWithAttachment;
-
-import java.math.BigDecimal;
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.List;
+import org.hibernate.annotations.LazyCollection;
+import org.hibernate.annotations.LazyCollectionOption;
+import org.hibernate.search.annotations.Analyze;
+import org.hibernate.search.annotations.Field;
+import org.hibernate.search.annotations.Index;
+import org.hibernate.search.annotations.Indexed;
+import org.hibernate.search.annotations.IndexedEmbedded;
 
 import javax.persistence.CascadeType;
 import javax.persistence.Column;
@@ -16,14 +18,10 @@ import javax.persistence.JoinTable;
 import javax.persistence.ManyToMany;
 import javax.persistence.OneToMany;
 import javax.persistence.Table;
-
-import org.hibernate.annotations.LazyCollection;
-import org.hibernate.annotations.LazyCollectionOption;
-import org.hibernate.search.annotations.Analyze;
-import org.hibernate.search.annotations.Field;
-import org.hibernate.search.annotations.Index;
-import org.hibernate.search.annotations.Indexed;
-import org.hibernate.search.annotations.IndexedEmbedded;
+import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
 
 @Entity
 @Table(name = "TRIPREQUIREMENT")
diff --git a/src/main/java/info/bukova/isspst/data/User.java b/src/main/java/info/bukova/isspst/data/User.java
index 144a2b7f..aa42455b 100644
--- a/src/main/java/info/bukova/isspst/data/User.java
+++ b/src/main/java/info/bukova/isspst/data/User.java
@@ -1,9 +1,13 @@
 package info.bukova.isspst.data;
 
 import info.bukova.isspst.StringUtils;
-
-import java.util.ArrayList;
-import java.util.List;
+import org.hibernate.annotations.Cache;
+import org.hibernate.annotations.CacheConcurrencyStrategy;
+import org.hibernate.search.annotations.Analyze;
+import org.hibernate.search.annotations.Field;
+import org.hibernate.search.annotations.Index;
+import org.hibernate.search.annotations.Indexed;
+import org.springframework.security.core.userdetails.UserDetails;
 
 import javax.persistence.Column;
 import javax.persistence.Embedded;
@@ -13,16 +17,13 @@ import javax.persistence.JoinColumn;
 import javax.persistence.JoinTable;
 import javax.persistence.ManyToMany;
 import javax.persistence.Table;
-
-import org.hibernate.search.annotations.Analyze;
-import org.hibernate.search.annotations.Field;
-import org.hibernate.search.annotations.Index;
-import org.hibernate.search.annotations.Indexed;
-import org.springframework.security.core.userdetails.UserDetails;
+import java.util.ArrayList;
+import java.util.List;
 
 @Entity
 @Table(name="USER")
 @Indexed
+@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
 public class User extends Member implements UserDetails, DataModel {
 
 	/**
@@ -50,6 +51,7 @@ public class User extends Member implements UserDetails, DataModel {
 	private boolean notify;
 	@ManyToMany(fetch=FetchType.EAGER) 
 	@JoinTable(name="USER_ROLE", joinColumns={@JoinColumn(name="USER_ID")}, inverseJoinColumns={@JoinColumn(name="ROLE_ID")})
+	@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
 	private List<Role> authorities;
 	@Column(name="SETTINGS", length=1048576)
 	private String settings;
diff --git a/src/main/java/info/bukova/isspst/data/Workgroup.java b/src/main/java/info/bukova/isspst/data/Workgroup.java
index b2efd95e..7954d083 100644
--- a/src/main/java/info/bukova/isspst/data/Workgroup.java
+++ b/src/main/java/info/bukova/isspst/data/Workgroup.java
@@ -1,11 +1,10 @@
 package info.bukova.isspst.data;
 
 import info.bukova.isspst.StringUtils;
-
-import java.io.Serializable;
-import java.math.BigDecimal;
-import java.util.ArrayList;
-import java.util.List;
+import org.hibernate.annotations.Cache;
+import org.hibernate.annotations.CacheConcurrencyStrategy;
+import org.hibernate.annotations.LazyCollection;
+import org.hibernate.annotations.LazyCollectionOption;
 
 import javax.persistence.CascadeType;
 import javax.persistence.Column;
@@ -17,12 +16,14 @@ import javax.persistence.ManyToMany;
 import javax.persistence.ManyToOne;
 import javax.persistence.Table;
 import javax.persistence.Transient;
-
-import org.hibernate.annotations.LazyCollection;
-import org.hibernate.annotations.LazyCollectionOption;
+import java.io.Serializable;
+import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.List;
 
 @Entity
 @Table(name = "WORKGROUP")
+@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
 public class Workgroup extends Member implements OwnedDataModel, Serializable { 
 	
 	/**
@@ -37,6 +38,7 @@ public class Workgroup extends Member implements OwnedDataModel, Serializable {
 	@ManyToMany(cascade = {CascadeType.ALL})
 	@LazyCollection(LazyCollectionOption.TRUE)
 	@JoinTable(name="WORKGROUP_MEMBER", joinColumns={@JoinColumn(name="WORKGROUP_ID")}, inverseJoinColumns={@JoinColumn(name="JOBMAPPING_ID")})
+	@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
 	private List<JobMapping> members;
 	@Column(name = "CENTRE")
 	private boolean centre;
diff --git a/src/main/java/info/bukova/isspst/ui/ListViewModel.java b/src/main/java/info/bukova/isspst/ui/ListViewModel.java
index ab00cce5..bfa8f70a 100644
--- a/src/main/java/info/bukova/isspst/ui/ListViewModel.java
+++ b/src/main/java/info/bukova/isspst/ui/ListViewModel.java
@@ -23,6 +23,7 @@ import org.zkoss.zk.ui.Executions;
 import org.zkoss.zk.ui.event.Event;
 import org.zkoss.zk.ui.event.EventListener;
 import org.zkoss.zk.ui.select.annotation.WireVariable;
+import org.zkoss.zul.Listheader;
 import org.zkoss.zul.Messagebox;
 import org.zkoss.zul.Window;
 
@@ -48,6 +49,7 @@ public class ListViewModel<T extends DataModel> extends DocumentViewModel
 	private boolean sortDesc = true;
 	private boolean newRec = false;
 	private boolean fullFill = false;
+	private Listheader sortHeader;
 
 	@WireVariable
 	private SeasonService seasonService;
@@ -280,9 +282,13 @@ public class ListViewModel<T extends DataModel> extends DocumentViewModel
 				dataList.set(selIndex, editBean);
 			}
 		}
-		
+
 		BindUtils.postGlobalCommand(null, null, "reloadRelated", null);
-		
+
+		if (sortHeader != null) {
+			sortHeader.setSortDirection("natural");
+		}
+
 	}
 
 	@GlobalCommand
@@ -334,13 +340,13 @@ public class ListViewModel<T extends DataModel> extends DocumentViewModel
 				}
 			}
 		}
-		
+
 		if (selIndex > -1) {
 			this.setDataBean(dataList.get(selIndex));
 			afterSelect();
 		}
 	}
-	
+
 	protected void beforeSelectViaUrl() {
 
 	}
@@ -360,6 +366,14 @@ public class ListViewModel<T extends DataModel> extends DocumentViewModel
 		dataBean = null;
 	}
 
+	@Command
+	@NotifyChange({"dataBean", "canApprove"})
+	public void onSortHeader(@BindingParam("header") Listheader header) {
+		sortHeader = header;
+		selIndex = -1;
+		dataBean = null;
+	}
+
 	public int getSelIndex() {
 		return this.selIndex;
 	}
diff --git a/src/main/webapp/WEB-INF/jdbc.properties b/src/main/webapp/WEB-INF/jdbc.properties
index 4e3ec948..35db1872 100644
--- a/src/main/webapp/WEB-INF/jdbc.properties
+++ b/src/main/webapp/WEB-INF/jdbc.properties
@@ -1,5 +1,5 @@
 jdbc.driverClassName=com.mysql.jdbc.Driver
 jdbc.dialect=org.hibernate.dialect.MySQLDialect
-jdbc.databaseurl=jdbc:mysql://127.0.0.1:3306/isspst?characterEncoding=latin2&autoReconnect=true
+jdbc.databaseurl=jdbc:mysql://127.0.0.1:3306/isspst-ostra?characterEncoding=latin2&autoReconnect=true
 jdbc.username=isspst
 jdbc.password=xsacfgd
\ No newline at end of file
diff --git a/src/main/webapp/WEB-INF/spring/root-context.xml b/src/main/webapp/WEB-INF/spring/root-context.xml
index cc08388d..943a3190 100644
--- a/src/main/webapp/WEB-INF/spring/root-context.xml
+++ b/src/main/webapp/WEB-INF/spring/root-context.xml
@@ -58,6 +58,10 @@
                 <prop key="hibernate.search.default.directory_provider">filesystem</prop>
                 <prop key="hibernate.search.default.indexBase">${storage.fulltextIndex}</prop>
                 <prop key="hibernate.search.analyzer">org.apache.lucene.analysis.cz.CzechAnalyzer</prop>
+				<prop key="hibernate.cache.use_second_level_cache">true</prop>
+				<prop key="hibernate.cache.use_query_cache">true</prop>
+				<prop key="hibernate.generate_statistics">true</prop>
+				<prop key="hibernate.cache.region.factory_class">org.hibernate.cache.ehcache.EhCacheRegionFactory</prop>
                 <!-- <prop key="hibernate.enable_lazy_load_no_trans">true</prop> -->
             </props>
         </property>
diff --git a/src/main/webapp/app/template.zhtml b/src/main/webapp/app/template.zhtml
index 7db51024..62b24e51 100644
--- a/src/main/webapp/app/template.zhtml
+++ b/src/main/webapp/app/template.zhtml
@@ -51,6 +51,6 @@
 		<div id="mainData">
 			<u:include src="${gridZul}" />
 		</div>
-		<div id="footer"> Verze 3.1 </div>
+		<div id="footer"> Verze 4.1 </div>
 	</div>
 </html>
\ No newline at end of file
diff --git a/src/main/webapp/main/orders/requirements/reqListMyAll.zul b/src/main/webapp/main/orders/requirements/reqListMyAll.zul
index aecbfbe0..5934cf9d 100644
--- a/src/main/webapp/main/orders/requirements/reqListMyAll.zul
+++ b/src/main/webapp/main/orders/requirements/reqListMyAll.zul
@@ -3,7 +3,7 @@
 		vflex="1"
 		hflex="7"
 		itemRenderer="@load(vm.requirementsItemRenderer)"
-		selectedItem="@bind(vm.dataBean)"
+		selectedItem="@save(vm.dataBean)"
 		model="@load(vm.dataList)"
 		mold="paging"
 		autopaging="true"
@@ -13,34 +13,42 @@
 			<listheader
 				label="${labels.StudentProjectAbr}"
 				sort="auto(project)"
+				onSort="@command('onSortHeader', header=self)"
 				hflex="5" />
 			<listheader
 				label="${labels.RequirementsGridNumberSerie}"
 				sort="czech(numser)"
+				onSort="@command('onSortHeader', header=self)"
 				hflex="7" />
 			<listheader
 				label="${labels.RequirementsGridReqDate}"
 				sort="auto(reqDate)"
+				onSort="@command('onSortHeader', header=self)"
 				hflex="13" />
 			<listheader
 				label="${labels.RequirementsGridCenter}"
 				sort="auto(centre.fullName)"
+				onSort="@command('onSortHeader', header=self)"
 				hflex="15" />
 			<listheader
 				label="${labels.RequirementsGridDeliveryDate}"
 				sort="auto(reqDate)"
+				onSort="@command('onSortHeader', header=self)"
 				hflex="13" />
 			<listheader
 				label="${labels.Amount}"
 				sort="auto(sumTotal)"
+				onSort="@command('onSortHeader', header=self)"
 				align="right"
 				hflex="10" />
 			<listheader
 				label="${labels.RequirementsGridDescription}"
 				sort="czech(description)"
+				onSort="@command('onSortHeader', header=self)"
 				hflex="20" />
 			<listheader
 				sort="auto(ownedBy.fullName)"
+				onSort="@command('onSortHeader', header=self)"
 				label="${labels.ownedBy}"
 				hflex="15" />
 		</listhead>
diff --git a/src/main/webapp/main/orders/requirements/reqListMyCenters.zul b/src/main/webapp/main/orders/requirements/reqListMyCenters.zul
index a15485a8..80ad4921 100644
--- a/src/main/webapp/main/orders/requirements/reqListMyCenters.zul
+++ b/src/main/webapp/main/orders/requirements/reqListMyCenters.zul
@@ -3,7 +3,7 @@
 		vflex="1"
 		hflex="7"
 		itemRenderer="@load(vm.requirementsItemRenderer)"
-		selectedItem="@bind(vm.dataBean)"
+		selectedItem="@save(vm.dataBean)"
 		mold="paging"
 		autopaging="true"
 		model="@load(vm.dataList)"
@@ -13,34 +13,42 @@
 			<listheader
 				label="${labels.StudentProjectAbr}"
 				sort="auto(project)"
+				onSort="@command('onSortHeader', header=self)"
 				hflex="5" />
 			<listheader
 				label="${labels.RequirementsGridNumberSerie}"
 				sort="czech(numser)"
+				onSort="@command('onSortHeader', header=self)"
 				hflex="7" />
 			<listheader
 				label="${labels.RequirementsGridReqDate}"
 				sort="auto(reqDate)"
+				onSort="@command('onSortHeader', header=self)"
 				hflex="13" />
 			<listheader
 				label="${labels.RequirementsGridCenter}"
 				sort="auto(centre.fullName)"
+				onSort="@command('onSortHeader', header=self)"
 				hflex="15" />
 			<listheader
 				label="${labels.RequirementsGridDeliveryDate}"
 				sort="auto(reqDate)"
+				onSort="@command('onSortHeader', header=self)"
 				hflex="13" />
 			<listheader
 				label="${labels.Amount}"
 				sort="auto(sumTotal)"
+				onSort="@command('onSortHeader', header=self)"
 				align="right"
 				hflex="10" />
 			<listheader
 				label="${labels.RequirementsGridDescription}"
 				sort="czech(description)"
+				onSort="@command('onSortHeader', header=self)"
 				hflex="20" />
 			<listheader
 				sort="auto(ownedBy.fullName)"
+				onSort="@command('onSortHeader', header=self)"
 				label="${labels.ownedBy}"
 				hflex="15" />
 		</listhead>
diff --git a/src/main/webapp/main/orders/requirements/reqListMyWorkgroups.zul b/src/main/webapp/main/orders/requirements/reqListMyWorkgroups.zul
index 966f38c0..2cd43a9e 100644
--- a/src/main/webapp/main/orders/requirements/reqListMyWorkgroups.zul
+++ b/src/main/webapp/main/orders/requirements/reqListMyWorkgroups.zul
@@ -3,7 +3,7 @@
 		vflex="1"
 		hflex="7"
 		itemRenderer="@load(vm.requirementsItemRenderer)"
-		selectedItem="@bind(vm.dataBean)"
+		selectedItem="@save(vm.dataBean)"
 		mold="paging"
 		autopaging="true"
 		model="@load(vm.dataList)"
@@ -13,34 +13,42 @@
 			<listheader
 				label="${labels.StudentProjectAbr}"
 				sort="auto(project)"
+				onSort="@command('onSortHeader', header=self)"
 				hflex="5" />
 			<listheader
 				label="${labels.RequirementsGridNumberSerie}"
 				sort="czech(numser)"
+				onSort="@command('onSortHeader', header=self)"
 				hflex="7" />
 			<listheader
 				label="${labels.RequirementsGridReqDate}"
 				sort="auto(reqDate)"
+				onSort="@command('onSortHeader', header=self)"
 				hflex="13" />
 			<listheader
 				label="${labels.RequirementsGridCenter}"
 				sort="auto(centre.fullName)"
+				onSort="@command('onSortHeader', header=self)"
 				hflex="15" />
 			<listheader
 				label="${labels.RequirementsGridDeliveryDate}"
 				sort="auto(reqDate)"
+				onSort="@command('onSortHeader', header=self)"
 				hflex="13" />
 			<listheader
 				label="${labels.Amount}"
 				sort="auto(sumTotal)"
+				onSort="@command('onSortHeader', header=self)"
 				align="right"
 				hflex="10" />
 			<listheader
 				label="${labels.RequirementsGridDescription}"
 				sort="czech(description)"
+				onSort="@command('onSortHeader', header=self)"
 				hflex="20" />
 			<listheader
 				sort="auto(ownedBy.fullName)"
+				onSort="@command('onSortHeader', header=self)"
 				label="${labelsownedBy}"
 				hflex="15" />
 		</listhead>
diff --git a/src/main/webapp/main/trips/bill/tripBillGridInt.zul b/src/main/webapp/main/trips/bill/tripBillGridInt.zul
index 588d863f..2fc59fa0 100644
--- a/src/main/webapp/main/trips/bill/tripBillGridInt.zul
+++ b/src/main/webapp/main/trips/bill/tripBillGridInt.zul
@@ -12,7 +12,7 @@
 				model="@load(vm.dataList)"
 				mold="paging"
 				autopaging="true"
-				selectedItem="@bind(vm.dataBean)"
+				selectedItem="@save(vm.dataBean)"
 				itemRenderer="@load(vm.itemRenderer)"
 				onAfterRender="@command('afterRender')"
 				selectedIndex="@bind(vm.selIndex)">
@@ -20,22 +20,27 @@
 				<listheader
 						label="${labels.TravelOrdersGridNumser}"
 						sort="czech(bill.requirement.numser)"
+						onSort="@command('onSortHeader', header=self)"
 						width="30%" />
 				<listheader
 						label="${labels.TravelOrdersGridReqDate}"
 						sort="auto(bill.requirement.reqDate)"
+						onSort="@command('onSortHeader', header=self)"
 						width="70%" />
 				<listheader
 						label="${labels.TravelOrdersGridFrom}"
 						sort="czech(bill.requirement.from)"
+						onSort="@command('onSortHeader', header=self)"
 						width="70%" />
 				<listheader
 						label="${labels.TravelOrdersGridTo}"
 						sort="czech(bill.requirement.to)"
+						onSort="@command('onSortHeader', header=self)"
 						width="70%" />
 				<listheader
 						label="${labels.TravelOrdersGridTotal}"
 						sort="auto(bill.total)"
+						onSort="@command('onSortHeader', header=self)"
 						align="right"
 						width="70%" />
 				<listheader
diff --git a/src/main/webapp/main/trips/requirements/reqListMyAll.zul b/src/main/webapp/main/trips/requirements/reqListMyAll.zul
index 58cbed28..44072f3f 100644
--- a/src/main/webapp/main/trips/requirements/reqListMyAll.zul
+++ b/src/main/webapp/main/trips/requirements/reqListMyAll.zul
@@ -10,7 +10,7 @@
 		<hbox vflex="1">
 			<listbox
 				model="@load(vm.dataList)"
-				selectedItem="@bind(vm.dataBean)"
+				selectedItem="@save(vm.dataBean)"
 				mold="paging"
 				autopaging="true"
 				hflex="7"
@@ -21,30 +21,37 @@
 					<listheader
 						label="${labels.RequirementsGridNumberSerie}"
 						sort="czech(numser)"
+						onSort="@command('onSortHeader', header=self)"
 						width="10%" />
 					<listheader
 						label="${labels.RequirementsGridReqDate}"
 						sort="auto(reqDate)"
+						onSort="@command('onSortHeader', header=self)"
 						width="13%" />
 					<listheader
 						label="${labels.RequirementsGridCenter}"
 						sort="auto(centre.fullName)"
+						onSort="@command('onSortHeader', header=self)"
 						width="10%" />
 					<listheader
 						label="${labels.RequirementsGridWorkgroup}"
 						sort="auto(workgroup.fullName)"
+						onSort="@command('onSortHeader', header=self)"
 						width="10%" />
 					<listheader
 						label="${labels.RequirementsGridFrom}"
 						sort="czech(from)"
+						onSort="@command('onSortHeader', header=self)"
 						width="30%" />
 					<listheader
 						label="${labels.RequirementsGridTo}"
 						sort="czech(to)"
+						onSort="@command('onSortHeader', header=self)"
 						width="30%" />
 					<listheader
 						label="${labels.RequirementsGridOwnedBy}"
 						sort="auto(ownedBy.fullName)"
+						onSort="@command('onSortHeader', header=self)"
 						width="20%" />
 				</listhead>
 				<auxhead
diff --git a/src/main/webapp/main/trips/requirements/reqListMyCenters.zul b/src/main/webapp/main/trips/requirements/reqListMyCenters.zul
index 5190a539..caee97dd 100644
--- a/src/main/webapp/main/trips/requirements/reqListMyCenters.zul
+++ b/src/main/webapp/main/trips/requirements/reqListMyCenters.zul
@@ -8,7 +8,7 @@
 		<hbox vflex="1">
 			<listbox
 				model="@load(vm.dataList)"
-				selectedItem="@bind(vm.dataBean)"
+				selectedItem="@save(vm.dataBean)"
 				mold="paging"
 				autopaging="true"
 				hflex="7"
@@ -19,26 +19,32 @@
 					<listheader
 						label="${labels.RequirementsGridNumberSerie}"
 						sort="czech(numser)"
+						onSort="@command('onSortHeader', header=self)"
 						width="10%" />
 					<listheader
 						label="${labels.RequirementsGridReqDate}"
 						sort="auto(reqDate)"
+						onSort="@command('onSortHeader', header=self)"
 						width="13%" />
 					<listheader
 						label="${labels.RequirementsGridCenter}"
 						sort="auto(centre.fullName)"
+						onSort="@command('onSortHeader', header=self)"
 						width="10%" />
 					<listheader
 						label="${labels.RequirementsGridFrom}"
 						sort="auto(from)"
+						onSort="@command('onSortHeader', header=self)"
 						width="40%" />
 					<listheader
 						label="${labels.RequirementsGridTo}"
 						sort="czech(to)"
+						onSort="@command('onSortHeader', header=self)"
 						width="40%" />
 					<listheader
 						label="${labels.RequirementsGridOwnedBy}"
 						sort="auto(ownedBy.fullName)"
+						onSort="@command('onSortHeader', header=self)"
 						width="20%" />
 				</listhead>
 				<auxhead
diff --git a/src/main/webapp/main/trips/requirements/reqListMyWorkgroups.zul b/src/main/webapp/main/trips/requirements/reqListMyWorkgroups.zul
index d5d3f9ba..87e864f7 100644
--- a/src/main/webapp/main/trips/requirements/reqListMyWorkgroups.zul
+++ b/src/main/webapp/main/trips/requirements/reqListMyWorkgroups.zul
@@ -8,7 +8,7 @@
 		<hbox vflex="1">
 			<listbox
 				model="@load(vm.dataList)"
-				selectedItem="@bind(vm.dataBean)"
+				selectedItem="@save(vm.dataBean)"
 				mold="paging"
 				autopaging="true"
 				hflex="7"
@@ -19,30 +19,37 @@
 					<listheader
 						label="${labels.RequirementsGridNumberSerie}"
 						sort="czech(numser)"
+						onSort="@command('onSortHeader', header=self)"
 						width="10%" />
 					<listheader
 						label="${labels.RequirementsGridReqDate}"
 						sort="auto(reqDate)"
+						onSort="@command('onSortHeader', header=self)"
 						width="13%" />
 					<listheader
 						label="${labels.RequirementsGridCenter}"
 						sort="auto(centre.fullName)"
+						onSort="@command('onSortHeader', header=self)"
 						width="10%" />
 					<listheader
 						label="${labels.RequirementsGridWorkgroup}"
 						sort="auto(workgroup.fullName)"
+						onSort="@command('onSortHeader', header=self)"
 						width="10%" />
 					<listheader
 						label="${labels.RequirementsGridFrom}"
 						sort="czech(from)"
+						onSort="@command('onSortHeader', header=self)"
 						width="30%" />
 					<listheader
 						label="${labels.RequirementsGridTo}"
 						sort="czech(to)"
+						onSort="@command('onSortHeader', header=self)"
 						width="30%" />
 					<listheader
 						label="${labels.RequirementsGridOwnedBy}"
 						sort="auto(ownedBy.fullName)"
+						onSort="@command('onSortHeader', header=self)"
 						width="20%" />
 				</listhead>
 				<auxhead