$(document).ready(function () {
    //caching our JQuery objects in variables...
    // var selectedVolume = $('.selectedVolume'); //replaced by pmpreface var
    var collapseLeft = $('.collapseLeft');
    var expandLeft = $('.expandLeft');
    var unselectedVolume = $('.unselectedVolume');
    var pmpreface = $("div.toc_heds:first:contains('Past Masters Preface')");
    //functions for expanding and collapsing the nav bar vertically...
    
    if (pmpreface.length !== 0) {
        collapseLeft.css("display", "none");
        expandLeft.css("display", "none");
        $.cookie('unselectedVolumes', null);
    } else {
        collapseLeft.click(function () {
            collapseLeft.fadeOut();
            expandLeft.fadeIn();
            unselectedVolume.slideUp("slow");
            $.cookie('unselectedVolumes', 'collapsed');
        });
        expandLeft.click(function () {
            expandLeft.fadeOut();
            collapseLeft.fadeIn();
            unselectedVolume.slideDown("slow");
            $.cookie('unselectedVolumes', 'expanded');
        });
        //setting variable and starting to define user preferences...
        var navBar = $.cookie('unselectedVolumes');
        if (navBar == 'collapsed') {
            collapseLeft.fadeOut();
            expandLeft.fadeIn();
            unselectedVolume.slideUp("slow");
        };
        if (navBar == 'expanded') {
            expandLeft.fadeOut();
            collapseLeft.fadeIn();
            unselectedVolume.slideDown("slow");
        };
    };
    if (pmpreface.length == 0) {
        collapseLeft.fadeOut();
        expandLeft.fadeIn();
        unselectedVolume.slideUp("slow");
    };
    
        
    
});