diff --git a/setup.py b/setup.py
index 20e9bc5..a760d74 100644
--- a/setup.py
+++ b/setup.py
@@ -31,7 +31,7 @@ setuptools.setup(name='umbra',
         long_description=open('README.md').read(),
         license='Apache License 2.0',
         packages=['umbra'],
-        package_data={'umbra':['behaviors.d/*.js', 'behaviors.yaml', 'version.txt']},
+        package_data={'umbra':['behaviors.d/*.js*', 'behaviors.yaml', 'version.txt']},
         install_requires=['kombu', 'websocket-client-py3==0.13.1', 'argparse', 'PyYAML'],
         scripts=glob.glob('bin/*'),
         zip_safe=False,
diff --git a/umbra/behaviors.d/simpleclicks.js.in b/umbra/behaviors.d/simpleclicks.js.in
new file mode 100644
index 0000000..2f0c95c
--- /dev/null
+++ b/umbra/behaviors.d/simpleclicks.js.in
@@ -0,0 +1,38 @@
+var umbraSimpleClicksBehavior = {
+        IDLE_TIMEOUT_SEC: 10,
+        idleSince: null,
+        clickTargets: [],
+        nextClickIndex: 0,
+
+        intervalFunc: function() {
+                if (this.nextClickIndex < this.clickTargets.length) {
+                        this.clickTargets[this.nextClickIndex].click();
+                        this.idleSince = null;
+                        this.nextClickIndex++;
+                } else if (this.idleSince == null) {
+                        this.idleSince = Date.now();
+                }
+        },
+
+        start: function() {
+                this.clickTargets = document.querySelectorAll("${click_css_selector}");
+
+                var that = this;
+                this.intervalId = setInterval(function(){ that.intervalFunc() }, 50);
+        },
+
+        isFinished: function() {
+                if (this.idleSince != null) {
+                        var idleTimeMs = Date.now() - this.idleSince;
+                        if (idleTimeMs / 1000 > this.IDLE_TIMEOUT_SEC) {
+                                return true;
+                        }
+                }
+                return false;
+        },
+};
+
+// Called from outside of this script.
+var umbraBehaviorFinished = function() { return umbraSimpleClicksBehavior.isFinished() };
+
+umbraSimpleClicksBehavior.start();
diff --git a/umbra/behaviors.py b/umbra/behaviors.py
index 43cd53b..2085690 100644
--- a/umbra/behaviors.py
+++ b/umbra/behaviors.py
@@ -8,6 +8,7 @@ import logging
 import time
 import sys
 import yaml
+import string
 
 class Behavior:
     logger = logging.getLogger(__module__ + "." + __qualname__)
@@ -22,10 +23,16 @@ class Behavior:
                 conf = yaml.load(fin)
             Behavior._behaviors = conf['behaviors']
 
+            simpleclicks_js_in = os.path.sep.join(__file__.split(os.path.sep)[:-1] + ["behaviors.d"] + ["simpleclicks.js.in"])
+            with open(simpleclicks_js_in) as fin:
+                simpleclicks_js_template = string.Template(fin.read())
+
             for behavior in Behavior._behaviors:
                 if "behavior_js" in behavior:
                     behavior_js = os.path.sep.join(__file__.split(os.path.sep)[:-1] + ["behaviors.d"] + [behavior["behavior_js"]])
                     behavior["script"] = open(behavior_js, encoding="utf-8").read()
+                elif "click_css_selector" in behavior:
+                    behavior["script"] = simpleclicks_js_template.substitute(click_css_selector=behavior["click_css_selector"])
 
         return Behavior._behaviors
 
@@ -43,11 +50,15 @@ class Behavior:
             if re.match(behavior['url_regex'], self.url):
                 if "behavior_js" in behavior:
                     self.logger.info("using {} behavior for {}".format(behavior["behavior_js"], self.url))
+                elif "click_css_selector" in behavior:
+                    self.logger.info("using simple click behavior with css selector {} for {}".format(behavior["click_css_selector"], self.url))
+
                 self.active_behavior = behavior
                 self.umbra_worker.send_to_chrome(method="Runtime.evaluate",
                         suppress_logging=True, params={"expression": behavior["script"]})
                 self.notify_of_activity()
                 return
+
         self.logger.warn("no behavior to run on {}".format(self.url))
 
     def is_finished(self):
@@ -85,6 +96,5 @@ if __name__ == "__main__":
             format='%(asctime)s %(process)d %(levelname)s %(threadName)s %(name)s.%(funcName)s(%(filename)s:%(lineno)d) %(message)s')
     logger = logging.getLogger('umbra.behaviors')
     logger.info("custom behaviors: {}".format(Behavior.behaviors()))
-    logger.info("default behavior: {}".format(Behavior.default_behavior()))
 
 
diff --git a/umbra/behaviors.yaml b/umbra/behaviors.yaml
index 84c98d3..a8ad695 100644
--- a/umbra/behaviors.yaml
+++ b/umbra/behaviors.yaml
@@ -16,6 +16,10 @@ behaviors:
    url_regex: '^https?://(?:www\.)?vimeo\.com/.*$'
    behavior_js: vimeo.js
    request_idle_timeout_sec: 10
+ - # acalog https://webarchive.jira.com/browse/ARI-3775
+   url_regex: '^https?://.*[?&]catoid=[^?]*$'
+   click_css_selector: a[onclick]
+   request_idle_timeout_sec: 10
  -
    url_regex: '^.*$'
    request_idle_timeout_sec: 10