function scrollit(id){
              window.scroll(0,275);
              var hoehe = 425 + $(id+'_n').scrollHeight;
              $(id+'_c').style.height = hoehe +'px';                   
            }

            function ref(id){
                if(lid != undefined){ Effect.toggle(lid+'_c', 'blind', { duration:0.5}); $(lid).className = 'navi'; $('me'+lid).show(); }
                if(lnav != undefined){ $(lnav).className = 'navi2'; }
                if(lid == id){ lid = undefined; $('me'+id).show(); }else{ lid = id; $('me'+id).hide(); }
                Effect.toggle(id+'_c', 'blind', { duration:0.5});                
            }

            function ref2(id){
                if(lnav != undefined){ $(lnav).className = 'navi2'; $(lnav+'_a').src = 'upload/layout/arrow.jpg'; }
                if(lnav == id){ lnav = undefined; $(id+'_a').src = 'upload/layout/arrow.jpg'; }else{ lnav = id; $(id+'_a').src = 'upload/layout/arrow_o.jpg'; }
            }

            function ajax(cat,art,load){
               new Ajax.Updater(   load,
                                'front_content.php?idart=2&cat='+ cat +'&art='+ art +'',
                                {   method: 'post',
                                    onLoading: loading(load)
                                }
                                );
            }

            function loading(id){
                $(id).innerHTML = '<img src="upload/layout/loading.gif">';
            }
            
            function showhide(id){
                if($(id).style.display == 'none'){
                   $(id).show();
                }else{
                   $(id).hide();
                }
            }