function addLoadEvent(func) {
      var oldonload = window.onload;
      if (typeof window.onload != 'function') {
        window.onload = func;
      } else {
        window.onload = function() {
          if (oldonload) { 
            oldonload();
          }
          func();
        }
      }
    }

    function resize()
    {
	document.getElementById('lowerright').style.marginTop = ('-'+(document.getElementById('upperleft').offsetHeight - document.getElementById('upperright').offsetHeight) + 'px'); 
    }

    addLoadEvent(resize);