diff --git a/workflow/engine/xmlform/authSources/authSources_SearchUsers.xml b/workflow/engine/xmlform/authSources/authSources_SearchUsers.xml
index 83e9ed4a5..cba5a92bf 100644
--- a/workflow/engine/xmlform/authSources/authSources_SearchUsers.xml
+++ b/workflow/engine/xmlform/authSources/authSources_SearchUsers.xml
@@ -17,66 +17,91 @@
 
 <btnImport type="button" onclick="importUsers(this.form);">
   <en>Import</en>
-</btnImport>
-
-<BTN_CANCEL type="button" onclick="cancel();">
-  <en>Cancel</en>
+</btnImport>
+
+<BTN_CANCEL type="button" onclick="cancel();">
+  <en>Cancel</en>
 </BTN_CANCEL>
 
 <JS type="javascript"><![CDATA[
-
-getField('btnImport').style.visibility = 'hidden';
-var searchUsers = function() {
-  var oRPC = new leimnud.module.rpc.xmlhttp({
-  	url : 'authSources_Ajax',
-  	args: 'action=searchUsers&sUID=' + getField('AUTH_SOURCE_UID').value + '&sKeyword=' + getField('KEYWORD').value
-  });
-  oRPC.callback = function(rpc){
-    document.getElementById('spanUsers').innerHTML = rpc.xmlhttp.responseText;
-    if (document.getElementById('aUsers[0]')) {
-      getField('btnImport').style.visibility = 'visible';
-    }
-    else {
-      getField('btnImport').style.visibility = 'hidden';
-    }
-  	var scs = rpc.xmlhttp.responseText.extractScript();
-  	scs.evalScript();
-  }.extend(this);
-  oRPC.make();
-};
-
-var importUsers = function(oForm) {
-  var bContinue = false;
-  var i = 0;
-  var oAux;
-  while (oAux = document.getElementById('aUsers[' + i + ']')) {
-    if (oAux.checked) {
-      bContinue = true;
-    }
-    i++;
-  }
-  if (bContinue) {
-    oForm.submit();
-  }
-  else {
-    //alert(666);
-  }
-};
-
-var selectAll = function(bChecked) {
-  var oAux;
-  var i = 0;
-  while (oAux = document.getElementById('aUsers[' + i + ']')) {
-    oAux.checked = true;
-    i++;
-  }
-};
-
-function cancel(){
-    window.location = 'authSources_List';
-}
-
+
+function disableEnterKey(e)
+{
+     var key;
+     if(window.event)
+          key = window.event.keyCode;     //IE
+     else
+          key = e.which;     //firefox
+
+     if(key == 13) {
+          searchUsers();
+          e.cancelBubble = true;
+          e.returnValue = false;
+          if (e.stopPropagation) {
+             e.stopPropagation();
+             e.preventDefault();
+          }
+          return false;
+     } else {
+          return true;
+     }
+}
+
+getField('btnImport').style.visibility = 'hidden';
+var searchUsers = function() {
+  var oRPC = new leimnud.module.rpc.xmlhttp({
+  	url : 'authSources_Ajax',
+  	args: 'action=searchUsers&sUID=' + getField('AUTH_SOURCE_UID').value + '&sKeyword=' + getField('KEYWORD').value
+  });
+  oRPC.callback = function(rpc){
+    document.getElementById('spanUsers').innerHTML = rpc.xmlhttp.responseText;
+    if (document.getElementById('aUsers[0]')) {
+      getField('btnImport').style.visibility = 'visible';
+    }
+    else {
+      getField('btnImport').style.visibility = 'hidden';
+    }
+  	var scs = rpc.xmlhttp.responseText.extractScript();
+  	scs.evalScript();
+  }.extend(this);
+  oRPC.make();
+};
+
+var importUsers = function(oForm) {
+  var bContinue = false;
+  var i = 0;
+  var oAux;
+  while (oAux = document.getElementById('aUsers[' + i + ']')) {
+    if (oAux.checked) {
+      bContinue = true;
+    }
+    i++;
+  }
+  if (bContinue) {
+    oForm.submit();
+  }
+  else {
+    //alert(666);
+  }
+};
+
+var selectAll = function(bChecked) {
+  var oAux;
+  var i = 0;
+  while (oAux = document.getElementById('aUsers[' + i + ']')) {
+    oAux.checked = true;
+    i++;
+  }
+};
+
+function cancel(){
+    window.location = 'authSources_List';
+}
+
+leimnud.event.add(getField('KEYWORD'), 'keypress', function(event) {
+  return disableEnterKey(event);
+});
 
 ]]></JS>
 
-</dynaForm>  
\ No newline at end of file
+</dynaForm>
\ No newline at end of file