$(document).ready(function() {
    $.tablesorter.defaults.widgets = ['zebra']; 
    $.tablesorter.defaults.sortList = [[0,0],[1,0]]; 
    $("#museumTable").tablesorter({

        headers: { 
            // assign the third column (we start counting zero) 
            2: { 
                // disable it by setting the property sorter to false 
                sorter: false 
            }
        } 
    }); 
});