function position(){

if(document.all)
{wt=document.body.offsetWidth;
 ht1=document.body.offsetHeight;
  
  
   
}
else
{
wt = window.innerWidth;
}

ht=document.body.scrollHeight;
   ospot=(wt-800)/2
   spot=(wt-900)/2;
   if(spot < 200)
  {
   
document.getElementById("bigthing").style.left=spot;
document.getElementById("footer").style.left=ospot;}
}

function stretch()
{ht=document.body.scrollHeight;
ht=ht +20;
var b1h=ht -130;
document.getElementById("bigthing").style.height=ht;
document.getElementById("bigborder").style.height=ht; 
document.getElementById("back1").style.height=b1h;
document.getElementById("back2").style.height=b1h;
document.getElementById("bigborder").style.height;
ft=ht+40;
document.getElementById("footer").style.top=ft;

}