Untitled

<HTML><HEAD></HEAD>
<BODY>
    <DIV id="time">Time</DIV>
</BODY>
<SCRIPT>
    !function(){
        setInterval(function(){
            document.getElementById('time').innerHTML = new Date();
        }, 500);
    }();
</SCRIPT>
</HTML>

((JavascriptExecutor) driver).executeScript(
    "var r = document.getElementsByTagName('script');" +
    "for(var i = (r.length - 1); i >=0; i--){" +
    "   r[i].parentNode.removeChild(r[i]);" +
    "}");

Thread.sleep(2000);

((JavascriptExecutor) driver).executeScript(
    "var newScript = document.createElement("SCRIPT");" +
    "newScript.innerHTML = "document.getElementById('time').innerHTML = 'NEW SCRIPT IS RUNNING';";" +
    "document.body.appendChild(newScript);");