$.expander.defaults.slicePoint = 120;

$(document).ready(function () {

    // override default options (also overrides global overrides)
    $('div.expandable p').expander({
        slicePoint: 70,  // default is 100
        expandText: '<span class=\'summary-link\'>more</span>', // default is 'read more'
        collapseTimer: 5000, // re-collapses after 5 seconds; default is 0, so no re-collapsing
        userCollapseText: '<span class=\'summary-link\'>less</span>'  // default is 'read less'
    });

});