diff --git a/HtmlNativeAndroid/htmlnative-lib/src/main/java/com/mozz/htmlnative/HNSandBoxContext.java b/HtmlNativeAndroid/htmlnative-lib/src/main/java/com/mozz/htmlnative/HNSandBoxContext.java
index 5f739b4..950c54f 100644
--- a/HtmlNativeAndroid/htmlnative-lib/src/main/java/com/mozz/htmlnative/HNSandBoxContext.java
+++ b/HtmlNativeAndroid/htmlnative-lib/src/main/java/com/mozz/htmlnative/HNSandBoxContext.java
@@ -25,6 +25,8 @@ public interface HNSandBoxContext extends VariablePool {
 
     void executeFun(String funName);
 
+    void executeUIFun(String funName);
+
     /**
      * Looking for View by Id set in .layout file
      *
diff --git a/HtmlNativeAndroid/htmlnative-lib/src/main/java/com/mozz/htmlnative/HNSandBoxContextImpl.java b/HtmlNativeAndroid/htmlnative-lib/src/main/java/com/mozz/htmlnative/HNSandBoxContextImpl.java
index f17e34a..fec2803 100644
--- a/HtmlNativeAndroid/htmlnative-lib/src/main/java/com/mozz/htmlnative/HNSandBoxContextImpl.java
+++ b/HtmlNativeAndroid/htmlnative-lib/src/main/java/com/mozz/htmlnative/HNSandBoxContextImpl.java
@@ -124,9 +124,26 @@ public void execute(final String script) {
         HNScriptRunnerThread.runScript(this, this.mRunner, script);
     }
 
+
+    @Override
+    public void executeFun(final String funName) {
+        HNScriptRunnerThread.post(new Runnable() {
+            @Override
+            public void run() {
+                mRunner.runFunction(funName);
+            }
+        });
+
+    }
+
     @Override
-    public void executeFun(String funName) {
-        mRunner.runFunction(funName);
+    public void executeUIFun(final String funName) {
+        HNScriptRunnerThread.postAtFront(new Runnable() {
+            @Override
+            public void run() {
+                mRunner.runFunction(funName);
+            }
+        });
     }
 
     @NonNull
diff --git a/HtmlNativeAndroid/htmlnative-lib/src/main/java/com/mozz/htmlnative/HNScriptRunnerThread.java b/HtmlNativeAndroid/htmlnative-lib/src/main/java/com/mozz/htmlnative/HNScriptRunnerThread.java
index 282d674..7c1b537 100644
--- a/HtmlNativeAndroid/htmlnative-lib/src/main/java/com/mozz/htmlnative/HNScriptRunnerThread.java
+++ b/HtmlNativeAndroid/htmlnative-lib/src/main/java/com/mozz/htmlnative/HNScriptRunnerThread.java
@@ -34,6 +34,10 @@ public static void post(Runnable r) {
         mHandler.post(r);
     }
 
+    public static void postAtFront(Runnable r) {
+        mHandler.postAtFrontOfQueue(r);
+    }
+
     private static class ScriptRunTask implements Runnable {
 
         WeakReference<HNSandBoxContext> mContextRef;
diff --git a/HtmlNativeAndroid/htmlnative-lib/src/main/java/com/mozz/htmlnative/css/Styles.java b/HtmlNativeAndroid/htmlnative-lib/src/main/java/com/mozz/htmlnative/css/Styles.java
index 64fce31..850897b 100644
--- a/HtmlNativeAndroid/htmlnative-lib/src/main/java/com/mozz/htmlnative/css/Styles.java
+++ b/HtmlNativeAndroid/htmlnative-lib/src/main/java/com/mozz/htmlnative/css/Styles.java
@@ -400,7 +400,8 @@ public void onClick(View v) {
 
                         @Override
                         public void onClick(View v) {
-                            sandBoxContext.executeFun(functionName);
+                            // to make sure the ui function is executed as fast as possible
+                            sandBoxContext.executeUIFun(functionName);
                         }
                     });