function clearSortBy()
{
var changeElem = $('select[@name=PostSearchSortBy1]');
changeElem.unbind();
changeElem.bind('change', function() {});
changeElem.unbind();
}

function doSubmit1(event)
{
var form = event.data;
form.submit();
}
function changeSortBy()
{
var changeElem = $('select[@name="PostSearchSortBy1"]');
var changeForm = $('select[@name="PostSearchSortBy1"]').parents('form');
clearSortBy();

changeElem.bind('change', changeForm, doSubmit1);
}
$(document).ready(function(){
clearSortBy();
changeSortBy();
});