Add loadContent to helpers.

vispa/static/js/base/helpers.js

@@ -84,6 +84,25 @@ $.Helpers = {
         return path;
     },
 
+    loadContent: function(url, requestData) {
+        requestData = $.extend({
+            url: url,
+            type: "GET",
+            async: false,
+            data: {},
+            contentKey: null
+        }, requestData);
+        var promise = $.ajax(requestData);
+        if (requestData.async) {
+            return promise;
+        }
+        var content;
+        $.when(promise).then(function(response) {
+            content = requestData.contentKey ? response[requestData.contentKey] : response;
+        });
+        return content;
+    },
+
     hasTouch: function() {
         return $.support.touch;
     },