- <a class="btn btn-primary" id="webstart-button" style="width: 150px;"
- href='http://jfed.iminds.be/releases/5.4-dev/r2314/webstart/experimenter/jfed-experimenter.jnlp'
- title="Click here to start your experiment with jFed">
- <span class="glyphicon glyphicon-cloud"></span> jFed</a>
+
+ <button id="start" class="btn btn-primary" style="width:150px;" type="button" onclick="launchjFed()"><span class="glyphicon glyphicon-cloud"></span> Start jFed</button>
+
+ <div id='java7Dialog' title="Old Java version detected" >
+ <p>The latest version of jFed is only compatible with Java 8 or higher. We detected that you are using an older version.</p>
+ <p>Please upgrade to Java 8 to get access to the newest version of jFed. Otherwise, you can use jFed 5.3.2, which is Java 7-compatible.</p>
+ </div>
+
+ <div id='noJavaDialog' title="No Java detected" >
+ <p>jFed requires Java to run. We however couldn't detect a Java installation in your browser.</p>
+ <p>Please install the latest version of Java to continue.</p>
+ </div>
+