function center()

{
if (document.documentElement.clientWidth) {var w=document.documentElement.clientWidth; var h=document.documentElement.clientHeight;}
else {var w=document.body.clientWidth; var h=document.body.clientHeight;}

w=(w-780)/2;
h=h-145;
//alert (w);
var b=window.document.getElementsByTagName('body')[0];
var c=window.document.getElementById('center');

if (w>0)
  {
  b.style.borderLeft=w+'px solid white';
  //b.style.paddingLeft=w+'px';
  }
else
  {
  b.style.borderLeft='0px';
  }

c.style.minHeight=h+'px';
//c.style.height=h+'px';
}
window.onresize=center;