- AjaxLib.css: better veil

- AjaxLib.js:
	- Renamed object FHC_Ajax_Client to FHC_AjaxClient
	- Removed REMOTE_CONTROLLER property from object data used as ajax call parameter
- Adapted FilterWidget.js to use AjaxLib.js
- Adapted NavigationWidget.js to use AjaxLib.js
- Introduced fhc_controller_id in method _printNavItem of NavigationWidget.js
- Adapted infocenterDetails.js and infocenterPersonDataset.js to use changed libraries

public/css/AjaxLib.css

@@ -1,14 +1,13 @@
 .veil {
 	position: absolute;
+	z-index: 9999;
 	top: 0;
 	left: 0;
-	height: 98%;
-	width: 99%;
+	height: 100%;
+	width: 100%;
 	background-color: white;
-	border-width: 1px;
-	border-style: solid;
-	border-color: black;
-	background-image: url("/public/imgages/loader.gif");
+	border-width: 0px;
+	background-image: url("../images/loader.gif");
 	background-repeat: no-repeat;
 	background-position: center;
 }