Try this code,
<script src="../jquery/jquery-113.pack.js" type="text/javascript"></script>
<script src="../jquery/imagebox/iutil.js" type="text/javascript"></script>
<script src="../jquery/imagebox/imagebox.js" type="text/javascript"></script>
<link href="../jquery/imagebox/imagebox.css" rel="stylesheet" />
<script type="text/javascript">
$(document).ready(function() {
$.ImageBox.init(function()
{
loaderSRC: '../jquery/imagebox/loading.gif',
closeHTML: '<img src="../jquery/imagebox/close.jpg" />'
}
);
}
);
</script>
<script type="text/javascript" language="javascript">
Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler);
function EndRequestHandler(sender, args) {
if (args.get_error() != undefined) {
args.set_errorHandled(true); location.reload(true);
}
}
</script>