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In IE7 SomeElement : visible not working
function MangeEmptyRecordList() {
    var leftPanel = $('#' + firstContainer);
    var rightPanel = $('#' + secondContainer);
    var firstContainerList = leftPanel.find('li:visible');
    if (firstContainerList.length > 0) {
        $("#emptyFirstContainer").hide();
    }
    else {
        $("#emptyFirstContainer").show();
    }
}