function checkresize() {
 docH = (self.innerHeight > 1) ? self.innerHeight : document.body.offsetHeight;
 marT = Math.floor(docH / 2 - 1575 / 2) - 2;
 if (document.getElementById('bordercontainer')) document.getElementById('bordercontainer').style.marginTop = ((marT > 2) ? marT : 2) + "px";
}
window.onresize = checkresize;