//Accordion for shop navigation

jQuery.fn.accordion = function(options) {
    // options
    var SLIDE_DOWN_SPEED = 'slow';
    var SLIDE_UP_SPEED = 'slow';
    var startClosed = options && options.start && options.start == 'closed';
    var on = options && options.on && (typeof options.on == 'number' && options.on > 0) ? options.on - 1 : 0;
    return this.each(function() {
        jQuery(this).addClass('accordion'); // use to activate styling
        jQuery(this).find('dd').hide();
        jQuery(this).find('dt').click(function() {
			var thisid = $(this).attr('id');
            var current = jQuery(this.parentNode).find('dd:visible');
            var next = jQuery(this).find('+dd');
            $.cookie('selectedelement', thisid, { path: '/' });
            if (current[0] != next[0]) {
                current.slideUp(SLIDE_UP_SPEED);
            } 
            if (next.is(':visible')) {
                next.slideUp(SLIDE_UP_SPEED);
            }
            else {
                next.slideDown(SLIDE_DOWN_SPEED);
            }
        });
        if (!startClosed) {
        	// -- get the cookie value back
        	var selectedpage = $.cookie('selectedelement');
        	if (selectedpage !== null) {
	            jQuery(this).find('dt#' + selectedpage + ' + dd').slideDown(SLIDE_DOWN_SPEED);
        	}
        	else {
	            jQuery(this).find('dd:eq(' + on + ')').slideDown(SLIDE_DOWN_SPEED);
        	}
        }
    });
};

$(document).ready(function() {
	$('#leftNav').accordion();
});