function resize()
{
  l1=document.getElementById('lab1');
  l2=document.getElementById('lab2');
  l3=document.getElementById('lab3');


  var max=142;
  if(l1.clientHeight>max) max=l1.clientHeight;
  if(l2.clientHeight>max) max=l2.clientHeight;
  if(l3.clientHeight>max) max=l3.clientHeight;

  t=document.getElementById('lablec');
  t.style.height=(max+20)+"px";

}