window.onload = function() { setElements(); }

window.onresize = function() { setElements(); }

function setElements() {

if (document.all) {
  cH = document.body.clientHeight;
  cW = document.body.clientWidth;
  elA = document.all["txtMain"];
  elB = document.all["txtLeft"];
  elC = document.all["txtRight"];
  elD = document.all["txtAll"];

  mainheight = cH - 161;
  mainwidth = cW - 330;

  if (elA) {
    elA.style.height = mainheight + "px";
    elA.style.width = mainwidth + "px";
    }
  if (elB) elB.style.height = mainheight + "px";
  if (elC) elC.style.height = mainheight + "px";
  if (elD) elD.style.height = mainheight + "px";


  return;
  }

if (document.getElementById) {
  wH = window.innerHeight;
  wW = window.innerWidth;
  elA = document.getElementById("txtMain");
  elB = document.getElementById("txtLeft");
  elC = document.getElementById("txtRight");
  elD = document.getElementById("txtAll");

  mainheight = wH - 150;
  mainwidth = wW - 330;

  if (elA) {
    elA.style.height = mainheight + "px";
    elA.style.width = mainwidth + "px";
    }
  if (elB) elB.style.height = mainheight + "px";
  if (elC) elC.style.height = mainheight + "px";
  if (elD) elD.style.height = mainheight + "px";

  return;
  }

}  // end setElements