model="";function init(){model = document.getElementById("models");anim(1, 1);};function anim(x, y){if (!y) {if (x>=0){x-=0.1;model.style.opacity = x;setTimeout(function(){anim(x, 0)},50);} else {setTimeout(function(){anim(0, 1)},600);swap();};} else {if (x<=1){x+=0.1;model.style.opacity = x;setTimeout(function(){anim(x, 1)},50);} else {setTimeout(function(){anim(1, 0)},3500);};};};function swap(){if(model.style.top=="0%"){model.style.top="-100%"}else{model.style.top="0%"};};