var ie4 = (document.all)? true:false; 
var ns4 = (document.layers)? true:false;  

function preloadImages() { //v3.0    
	var doc = document;
	var i, images = preloadImages.arguments;
	for(i=0; i<images.length; i++){
		var newimage = new Image();
		newimage.src = images[i];
	}
}

function getCookieVal (offset) {
  var endstr = document.cookie.indexOf (";", offset);
  if (endstr == -1)
    endstr = document.cookie.length;
  return unescape(document.cookie.substring(offset, endstr));
}

function getCookie (arg) {
  arg = arg + '=';
  var clen = document.cookie.length;
  var i = 0;
  while (i < clen) {
    var j = i + arg.length;
    if (document.cookie.substring(i, j) == arg)
      return getCookieVal (j);
    i = document.cookie.indexOf(" ", i) + 1;
    if (i == 0) break; 
  }
  return null;
}