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Bug in IE when using Javascript to change a form action, when method=get and URL contains a hash
<script type="text/javascript">
function changeURL() {
    var myform = document.getElementById('myform');

    myform.setAttribute("action", "page2.html#hello");

    return false;
}
</script>

<form id="myform" action="page1.html" method="get" onsubmit="changeURL()">
    <input type="submit">
</form>

myform.action = "page2.html#hello";

myform.attr("action", "page2.html#hello");

myform.get(0).setAttribute("action", "page2.html#hello");

<script type="text/javascript">
function changeURL() {
    var hidden = document.createElement('input');
    hidden.setAttribute("type", "hidden");
    hidden.setAttribute("name", "hash");
    hidden.setAttribute("value", "hello");
    var myform = document.getElementById('myform');
    myform.setAttribute("action", "page2.html");
    myform.appendChild(hidden);
    // return false;
}
</script>
<form id="myform" action="page1.html" method="get" onsubmit="changeURL()">
    <input type="submit">
</form>

<script type="text/javascript">
var qs = window.location.search.substring(1);
var qsarr = qs.split("&");
for (var i=0; i<qsarr.length; i++) {
    var tarr = qsarr[i].split("=");
    if (tarr[0]==="hash") {
        window.location.hash = tarr[1];
    }
}
</script>

<form action="#test" method="get">
    <input type="text" value="test" />
    <input type="submit" />
</form>