Question: is this a valid JQuery usage pattern to :

```
<script type="text/javascript">
        $("body").prepend('<input type="hidden" id="error" value="show">');         
    </script>

```

That is using Jquery to manipulate / insert HTML Tags **when the Document has NOT YET been loaded** (by not using document.ready for the inserting into the DOM)?

(Normally I only use document.ready, but in this case I need to insert some Information into the DOM that then is present, when document.ready is called. This is some kind of "happens-before" relations ship I want to achieve so that I am shure when document.ready is called the inserted Form field is available in the document, as I depend on that information.

Thank you very much
jens

Answer: 
You can but it won't consistently work, as Andrew Bezzub says IE will be the problem (surprise, surprise)

Hard to tell the master plan but for your example could you just not just put this immediately after the `<body>` opening tag:

```
document.write('<input type="hidden" id="error" value="show">');

```
IE may fail loading such HTML - it has problems when someone modifies not fully rendered elements. I think the right choice would be placing such code just after tag.