diff --git a/caldroid/src/main/java/com/roomorama/caldroid/CaldroidGridAdapter.java b/caldroid/src/main/java/com/roomorama/caldroid/CaldroidGridAdapter.java
index 27ae6c2..90282c7 100644
--- a/caldroid/src/main/java/com/roomorama/caldroid/CaldroidGridAdapter.java
+++ b/caldroid/src/main/java/com/roomorama/caldroid/CaldroidGridAdapter.java
@@ -245,7 +245,17 @@ protected void setCustomResources(DateTime dateTime, View backgroundView,
 
             // Set it
             if (backgroundResource != null) {
-                backgroundView.setBackgroundResource(backgroundResource);
+                try
+                {
+                    String tmp = this.context.getResources().getResourceName(backgroundResource);
+                    // have resource
+                    backgroundView.setBackgroundResource(backgroundResource);
+                }
+                catch(Resources.NotFoundException e)
+                {
+                    // doesn't have resource, use like color
+                    backgroundView.setBackgroundColor(backgroundResource);
+                }
             }
         }
 
diff --git a/caldroidSampleActivity/src/main/java/com/caldroidsample/CaldroidSampleActivity.java b/caldroidSampleActivity/src/main/java/com/caldroidsample/CaldroidSampleActivity.java
index 08ba11a..60e79f4 100644
--- a/caldroidSampleActivity/src/main/java/com/caldroidsample/CaldroidSampleActivity.java
+++ b/caldroidSampleActivity/src/main/java/com/caldroidsample/CaldroidSampleActivity.java
@@ -106,6 +106,8 @@ public void onSelectDate(Date date, View view) {
                 Toast.makeText(getApplicationContext(), formatter.format(date),
                         Toast.LENGTH_SHORT).show();
 
+                caldroidFragment.setBackgroundResourceForDate(0xffff0000, date);
+                caldroidFragment.refreshView();
             }
 
             @Override