diff --git a/app/templates/index.html b/app/templates/index.html
index 8b0898e..f5fb1f4 100644
--- a/app/templates/index.html
+++ b/app/templates/index.html
@@ -32,16 +32,22 @@
             var btn = document.createElement("a");
             btn.setAttribute('class', 'btn btn-primary');
             btn.setAttribute('id', 'to_collate');
-            btn.setAttribute('style', 'display:block;');
+            btn.setAttribute('style', 'display:block;margin-bottom:2em;');
             btn.setAttribute("onclick", `collateMe('${selected}');`);
             btn.innerHTML = `Mit konstituierten Text: ${manifest} Kollationierung starten`;
             result2 = document.getElementById('result2');
-            while (result2.firstChild) {
+            if (result2.firstChild) {
                result2.removeChild(result2.firstChild);
             }
-            result2.append(btn);
+            result2.prepend(btn);
          }
          function collateMe(selected) {
+            var pom_div = document.createElement('div');
+            var pom_attr = `pom_div__${Date.now()}`;
+            pom_div.setAttribute("id", pom_attr);
+            var result2 = document.getElementById('result2');
+            result2.append(pom_div);
+            /*
             let customSelect = document.querySelectorAll(".custom-select");
             customSelect.forEach(function(el) {
                el.setAttribute("disabled", "");
@@ -54,12 +60,11 @@
             let attr = to_collate.getAttribute("onclick");
             to_collate.removeAttribute("onclick");
             to_collate.classList.remove("btn-primary");
-
+            */
             var spinner = document.createElement('p');
             spinner.setAttribute('id', 'loading');
-            spinner.innerHTML = "Kollationierung läuft...";
-            var result2 = document.getElementById('result2');
-            result2.append(spinner);
+            spinner.innerHTML = `Kollationierung läuft: ${selected.split(',')[0]} ...`;
+            document.getElementById(pom_attr).append(spinner);
             $.ajax({
                type: "POST",
                url: `/collate/${[selected]}`,
@@ -81,11 +86,11 @@
                   pom.setAttribute('class', 'btn btn-success');
                   pom.setAttribute('style', 'display:block;margin-bottom:2em;');
                   pom.innerHTML = `Kollationierung herunterladen (${selected.split(',')[0]}) `;
-                  result2.append(pom);
+                  document.getElementById(pom_attr).append(pom);
                   
                   let loader = document.getElementById('loading');
-                  loader.innerHTML = "Kollationierung abgeschlossen";
-                  
+                  loader.innerHTML = `Kollationierung abgeschlossen: ${selected.split(',')[0]}`;
+                  /*
                   customSelect.forEach(function(el) {
                      el.removeAttribute("disabled");
                   });
@@ -95,7 +100,7 @@
 
                   to_collate.setAttribute("onclick", attr);
                   to_collate.classList.add("btn-primary");
-
+                  */
                   let app = document.createElement('a');
                   app.setAttribute("class", "btn btn-success");
                   app.setAttribute("id", "get_app");
@@ -104,7 +109,7 @@
                   app.style.backgroundColor = "#000";
                   app.style.color = "#fff";
                   app.innerHTML = "Create WebApp";
-                  result2.append(app);
+                  document.getElementById(pom_attr).append(app);
 
                   document.getElementById("get_app").addEventListener("click", function() {
                      $.ajax({
@@ -127,7 +132,7 @@
                            pom.style.backgroundColor = "orange";
                            pom.classList.add('dragout');
                            pom.innerHTML = `WebApp (index.html) zur Kollationierung herunterladen`;
-                           result2.append(pom);
+                           document.getElementById(pom_attr).append(pom);
                         }
                      });
                   });
@@ -162,7 +167,7 @@
                   pom.style.backgroundColor = "red";
                   pom.classList.add('dragout');
                   pom.innerHTML = `Konstituierten Text herunterladen (${selected.split(',')[0]})`;
-                  result2.append(pom);
+                  document.getElementById(pom_attr).append(pom);
                }
             });
          }   
diff --git a/app/utils.py b/app/utils.py
index cbb9206..681ae16 100644
--- a/app/utils.py
+++ b/app/utils.py
@@ -3,6 +3,7 @@
 import shutil
 import requests
 import xml.etree.ElementTree as ET
+from datetime import datetime
 
 from zipfile import ZipFile
 from acdh_collatex_utils.acdh_collatex_utils import CxCollate, CxReader
@@ -110,7 +111,11 @@ def collate_tei(save_path, path_dir, select):
     werk = el[1].replace('s__', '')
     manifest = el[0]
     all_manifests_pre = glob.glob(os.path.join(save_path, '*', path_dir, werk, '*.xml'))
-    os.makedirs("tmp_to_collate", exist_ok=True)
+    dt = datetime.now()
+    ts = datetime.timestamp(dt)
+    ts_str = str(ts).replace('.', '')
+    tmp_dir = os.path.join("tmp_to_collate", ts_str)
+    os.makedirs(tmp_dir, exist_ok=True)
     for x in all_manifests_pre:
         tei = CxReader(
             xml=x,
@@ -119,14 +124,15 @@ def collate_tei(save_path, path_dir, select):
             chunk_size=CHUNK_SIZE,
             to_compare_xpath=XPATH
         ).preprocess()
-        new_save_path = os.path.join("tmp_to_collate", x.split('/')[-1])
+        new_save_path = os.path.join(tmp_dir, x.split('/')[-1])
         with open(new_save_path, 'wb') as f:
             f.write(tei)
         print(f"TEI updated ({new_save_path})")
-    all_manifests = os.path.join(".", "tmp_to_collate", '*.xml')
-    os.makedirs('collate-out', exist_ok=True)
-    os.makedirs('collate-out/collated', exist_ok=True)
-    output_dir = "./collate-out/collated"
+    all_manifests = os.path.join(".", tmp_dir, '*.xml')
+    col_out = os.path.join('collate-out', ts_str)
+    os.makedirs(col_out, exist_ok=True)
+    os.makedirs(os.path.join(col_out, 'collated'), exist_ok=True)
+    output_dir = f"./{col_out}/collated"
     result_file = f'{output_dir}/collated.xml'
     result_html = './index.html'
 
@@ -165,7 +171,7 @@ def collate_tei(save_path, path_dir, select):
     with open(result_html, 'w') as f:
         f.write(full_doc.prettify("utf-8").decode('utf-8'))
     result_html = full_doc.prettify("utf-8").decode('utf-8')
-    shutil.rmtree("tmp_to_collate")
+    shutil.rmtree(tmp_dir)
     for x in glob.glob(f"{output_dir}/out__*"):
         print(f"removing {x}")
         os.remove(x)