Adopt API for meta data

Change-Id: I1615261a765325516a1b838bd87075de480556f3
diff --git a/dev/js/src/api.js b/dev/js/src/api.js
index 89534be..b87eb1f 100644
--- a/dev/js/src/api.js
+++ b/dev/js/src/api.js
@@ -57,6 +57,25 @@
 
 
   /**
+   * Retrieve information about a document.
+   */
+  KorAP.API.getTextInfo = function (doc, param, cb) {
+
+    // doc is a KorAP.Match object
+    var url = KorAP.URL;
+    url += '/' + match.textSigle;
+
+    if (param['fields'] !== undefined) {
+      url += '?fields='; // TODO!
+    }
+    else {
+      url += '?fields=@all';
+    }
+    KorAP.API.getJSON(url, cb);
+  };
+
+
+  /**
    * Retrieve information about collections
    */
   KorAP.API.getCollections = function (cb) {