Form locks with rotating arrows after submit

Hi,
This is the first project that I do with the Canvas. When I submit a form using javascript the operation is successful but the form locks waiting for response. I am not using the php scripts that was included with the template and use asp.net insetead. I have tried returning true and false from the javascript functions but none has worked. Here is sample code of what I run.

<form class="row" name="form1" id="form1" action="#" method="post" enctype="multipart/form-data">
<input type="text" id="text1" runat="server" value="0" />
<button class="button button-3d button-black nomargin" id="btnSave" name="btnSave" onclick="updateQuote()">Save Changes</button>
</form>

My javascript function:

function updateQuote() {
//Do some procssing.
return false;
}

As I explained I have tried returning true and returning false and none of them resolved the issue. Can you help please.