<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script>

function boom()
{
    document.designMode = 'on';
    document.execCommand("indent", false, null);
    document.execCommand("insertText", false, "a");
    document.execCommand("forwardDelete", false, null);
    document.execCommand("justifyfull", false, null);
}

window.addEventListener("load", boom, false);

</script>
</head>

<body> <span class="v"></span></body><body><input type="file" /></body>

</html>