My code

<!DOCTYPE html>
<html>
    <head>
        <link rel="stylesheet" href="style.css" />
        <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
        <title>Clicker!</title>
    </head>

    <body>
        <h3 id="head1"><span id="Aliens">0</span> aliens</h3>
        <h3 id="head2"><span id="Empires">0</span> empires</h3>
        <h3 id="head3"><span id="Spaceships">0</span> spaceships</h3>
        <h3 id="head4"><span id="Planets">0</span> planets</h3>
        <h3 id="head5"><span id="SolarSystems">0</span> solarsystems</h3>
        <h3 id="head6"><span id="Galaxies">0</span> galaxies</h3>
        <h3 id="head7"><span id="Workers">0</span> workers</h3>
        <!--<p>You need <span id="test">0</span> aliens to hire a worker!</p>--> <!--Need to make dynamic-->
        <img id="Alien" src="alien.png">
        <img id="whirl" src="galaxy.jpg" style="width:25em; height:25em;">
        <button id="Purchase">Hire Workers</button>
    </body>
    <script>
    $(function() {
    $('#Alien').click(function() {
        incrementCounter();
    });

    function incrementCounter() {
        var previousCounter = parseInt($("#Aliens").text());
        previousCounter = isNaN(previousCounter) ? 0: ++previousCounter;

        $("#Aliens").text(previousCounter);

        if(previousCounter % 25 === 0) {
            $("#Empires").text(previousCounter/25);
        }

        if(previousCounter % 100 === 0) {
            $("#Spaceships").text(previousCounter/100);
        }

        if(previousCounter % 1000 === 0) {
            $("#Planets").text(previousCounter/1000);
        }

        if(previousCounter % 10000 === 0) {
            $("#SolarSystems").text(previousCounter/10000);
        }

        if(previousCounter % 100000 === 0) {
            $("#Galaxies").text(previousCounter/100000);
        }

    }

    function resetCounter() {
        $("#Aliens").text(0);
    }
});

    </script>
    <script id="s2">
    $(function() {
    $('#Purchase').click(function() {
        automaticCounter();
    });

    function automaticCounter() {
        var workers = parseInt($("#Workers").text());
        workers = isNaN(workers) ? 0: ++workers;

        $("#Workers").text(workers);

        var autoCounter = parseInt($("#Aliens").text());
        autoCounter = isNaN(autoCounter) ? 0: autoCounter - 10 * workers;

        $("#Aliens").text(autoCounter);

        var workerCheck = setInterval(function(){
            var workers = parseInt($("#Workers").text());
                if( workers > 0 ){
                    for(var i = 0; i < workers; i++){
                    $("#Alien").click();
                    }
                }
        },5000);
    }
    });
    </script>
</html>