var stitch_running = false;

function stitch_show(tab)
{
    if(stitch_running) {return;}

    var runner = function(last) {
        last = last.substring(last.length-1);
        jQuery('#stitch_tab_'+last).removeClass('stitch_tab_'+last);
        jQuery('#stitch_tab_'+tab).addClass('stitch_tab_'+tab);
        jQuery('#stitch_box_'+tab).slideDown(500, function() {
            stitch_running = false;
        });
    }
    
    var boxes = new Array('A', 'B', 'C', 'D', 'E', 'F');
    for(i=0;i!=6;i++) {
        if(jQuery('#stitch_box_'+boxes[i]).css('display') != 'none') {
            stitch_running = true;
            jQuery('#stitch_box_'+boxes[i]).slideUp(500, function() {
                runner(this.id);
            });
        }
    }
}