function tabs(f,c){var b=0,e=!1;c.each(function(a,d){a.set("morph",{duration:400,transition:Fx.Transitions.linear.easeOut,link:"chain",onStart:function(){e=!0;a.removeClass("dn").addClass("elements")},onComplete:function(){c[b].addClass("dn").removeClass("elements");b=d;e=!1}});a.hasClass("dn")?a.get("morph").set({opacity:0}):b=d});f.each(function(a,d){a.getElement("a").addEvent("click",function(g){g.stop();!a.hasClass("selected")&&!e&&(f[b].removeClass("selected"),a.addClass("selected"),c[b].get("morph").start({opacity:0}).chain(function(){c[d].removeClass("dn").get("morph").start({opacity:1}); scroll_vertical($("portfolio").getElement(".contents"))}))})})};