var h = 0;
var w = 0;
var switchoff = 0;
var last_offset = 0;
var percent = 0;

browser = navigator.appName;

document.layers ? thisbrowser="NN4" : thisbrowser="IE";
if (thisbrowser == "IE" && browser == "Netscape") thisbrowser = "MOZ";

initlift()

function autolift()
{
  if (thisbrowser=="NN4")
  {
    w1 = eval("window.innerWidth");
    h1 = eval("window.innerHeight");
    menuwidth = eval("document.MainMenu.clip.width");
    menuheight = eval("document.MainMenu.clip.height");
    scrollbarminus = 8;
    menu = eval("document.MainMenu");
    offset = eval("window.pageYOffset");
  }
  else if (thisbrowser=="MOZ")
  {
    w1 = eval("window.innerWidth");
    h1 = eval("window.innerHeight");
    menuwidth = eval("document.getElementById('MainMenu').offsetWidth");
    menuheight = eval("document.getElementById('MainMenu').offsetHeight");
    scrollbarminus = 8;
    menu = eval("document.getElementById('MainMenu').style");
    offset = eval("window.pageYOffset");
    //alert(offset);
  }
  else
  {
    w1 = eval("document.body.clientWidth");
    h1 = eval("document.body.clientHeight");
    menuwidth = eval("MainMenu.offsetWidth");
    menuheight = eval("MainMenu.offsetHeight");
    scrollbarminus = 0;
    menu = eval("MainMenu.style");
    offset = eval("document.body.scrollTop");
  }
		
  h2 = offset;
	
  w = 10;			
  h = 118;			
  if (((offset-last_offset) > 1 || (offset-last_offset) < 1))
  {
    percent = (offset - last_offset)/10;
    if (percent > 0) {percent = Math.ceil(percent);} else {percent = Math.floor(percent);}
		
    menu.top = last_offset + h;
    menu.left = w;
  }
  else
  {
    menu.top = h + offset;
    menu.left = w;
  }
	
  last_offset = last_offset + percent;
}

function initlift()
{
  if (thisbrowser=="NN4")
  {
    w1 = eval("window.innerWidth");
    h1 = eval("window.innerHeight");
    menuwidth = eval("document.MainMenu.clip.width");
    menuheight = eval("document.MainMenu.clip.height");
    scrollbarminus = 8;
    menu = eval("document.MainMenu");
    offset = eval("window.pageYOffset");
  }
  else if (thisbrowser=="MOZ")
  {
    w1 = eval("window.innerWidth");
    h1 = eval("window.innerHeight");
    menuwidth = eval("document.getElementById('MainMenu').offsetWidth");
    menuheight = eval("document.getElementById('MainMenu').offsetHeight");
    scrollbarminus = 8;
    menu = eval("document.getElementById('MainMenu').style");
    offset = eval("window.pageYOffset");
  }
  else
  {
    w1 = eval("document.body.clientWidth");
    h1 = eval("document.body.clientHeight");
    menuwidth = eval("document.getElementById('MainMenu').offsetWidth");
    menuheight = eval("document.getElementById('MainMenu').offsetHeight");
    scrollbarminus = 0;
    menu = eval("document.getElementById('MainMenu').style");
    offset = eval("document.body.scrollTop");
  }

  w = (w1/2) - (770/2) + 10 - scrollbarminus;			
  h = 118;			
  menu.top = h + offset;
  menu.left = w;
}
	
intervaltime = (thisbrowser != "MOZ") ? 16 : 32;
setInterval("autolift()",intervaltime);