<head runat="server">
<title></title>
<script type="text/javascript" language="javascript">
function confirmUpload() {
return confirm("Do you want to upload this file for <%= Session("CompanyName") %>?");
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Button ID="btnUpload" runat="server" Text="Upload" OnClientClick="return confirmUpload()" />
</div>
</form>
</body>