if (navigator.appName == "Netscape") {
    document.write('<link rel="stylesheet" type="text/css" href="css/position.css">');
}  else  {
    document.write('<link rel="stylesheet" type="text/css" href="css/position_ie.css">');
}

function setMainSize()  {

  var mj_footer_height = 50;

  if (navigator.appName == "Netscape") {
     w = window.innerWidth;
     x = w-172;
     h = window.innerHeight;
     y = h-40-mj_footer_height;
     
    if (document.getElementById)  {
      var main = document.getElementById("main");
      var footer = document.getElementById("footer");
      main.style.height = y; 
      main.style.width = x;
      footer.style.top = h-mj_footer_height; 
      footer.style.height = mj_footer_height;  }
    else if (document.layers)  {
       document.layers["main"].height = y;
       document.layers["main"].width = x;
       document.layers["footer"].top = h-mj_footer_height;
    }
  }
}