// this var will be used to tell the system whether or not 
// other sections will respond to clicking on a headline 
var closeOthers = true; 

// check which sections are open 
function checkOpen() { 
        // how many sections are open 
        var openCount = $('#accordion .ui-accordion-content:visible').length; 
        // how many sections are there 
        var totalCount = $('#accordion .ui-accordion-content').length; 
        // set closeOthers var based on if there are 1 or 0 sections open 
        if (openCount < 2) closeOthers = true; 
        // change the text in the expand link based on if 
        // there are more or less than half of the sections open 
        if (openCount > totalCount/2) { 
                $('#accordion #expand').html("скрий всички"); 
        } 
        else { 
                $('#accordion #expand').html("покажи всички"); 
        } 
} 
// hide all sections 
$('#accordion .ui-accordion-content').hide(); 
// show the first section 
$('#accordion .ui-accordion-content:first').show(); 
// actions taken upon clicking any headline 
$('#accordion .ui-accordion-header').click( function() { 
        // set checkSection to the section next to the headline clicked 
        var checkSection = $(this).next(); 
        // if the section is open, close it, and call checkOpen 
        if(checkSection.is(':visible')) { 
                checkSection.slideUp('normal', checkOpen); 
                return false; 
        } 
        // if the section is closed and closeOthers 
        // is true, close all other open sections 
        else { 
                if (closeOthers) { 
                        $('#accordion .ui-accordion-content:visible').slideUp('normal'); 
                } 
                // open the section and call checkOpen 
                checkSection.slideDown('normal', checkOpen); 
                return false; 
        } 
}); 
// actions taken upon clicking the expand link 
$('#accordion #expand').click( function() { 
        // if the expand link's text is 'expand all', set closeOthers 
        // to false, open all sections and call checkOpen 
        if ($('#accordion #expand').html() == "покажи всички") { 
                closeOthers = false; 
                $('#accordion .ui-accordion-content').slideDown('normal', checkOpen); 
        } 
        // if the expand link's text is 'expand all', set closeOthers 
        // to true, hide all sections, and call checkOpen 
        else { 
                closeOthers = true; 
                // the 1 prevents nasty flickering in some browsers 
                $('#accordion .ui-accordion-content').hide(1, checkOpen); 
        } 
        return false; 
});