// fixscroll.js:
// call loadP and unloadP when body loads/unloads and scroll position will not move
function getScrollXY() {
  var x = 0, y = 0;
  if (typeof (window.pageYOffset) == 'number') {
    // Netscape
    x = window.pageXOffset;
    y = window.pageYOffset;
  } else if (document.body && (document.body.scrollLeft || document.body.scrollTop)) {
    // DOM
    x = document.body.scrollLeft;
    y = document.body.scrollTop;
  } else if (document.documentElement && (document.documentElement.scrollLeft || document.documentElement.scrollTop)) {
    // IE6 standards compliant mode
    x = document.documentElement.scrollLeft;
    y = document.documentElement.scrollTop;
  }
  return [x, y];
}

function setScrollXY(x, y) {
  window.scrollTo(x, y);
}
function createCookie(name, value, days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
    var expires = "; expires=" + date.toGMTString();
  }
  else var expires = "";
  document.cookie = name + "=" + value + expires + "; path=/";
}

function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for (var i = 0; i < ca.length; i++) {
    var c = ca[i];
    while (c.charAt(0) == ' ') c = c.substring(1, c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
  }
  return null;
}
function loadP(pageref) {
  x = readCookie(pageref + 'x');
  y = readCookie(pageref + 'y');
  setScrollXY(x, y)
}
function unloadP(pageref) {
  s = getScrollXY()
  createCookie(pageref + 'x', s[0], 0.1);
  createCookie(pageref + 'y', s[1], 0.1);
}