//load position
function loadScroll() {
  var xy = getCookie("xy"); 
  if (!xy) return;
  var ar = xy.split("_");
  if (ar.length == 2) scrollTo(parseInt(ar[0]), parseInt(ar[1]));
}

//save position
function saveScroll() {
  	var now = new Date();
  	now.setTime(now.getTime() + 365 * 24 * 60 * 60 * 1000);
	var x=0;
	var y =  document.body.scrollTop;
  	setCookie("xy", x + "_" + y, now);
}


function init() {

	// quit if this function has already been called
	if (arguments.callee.done) return;

	// flag this function so we don't do the same thing twice
	arguments.callee.done = true;

	// kill the timer
	if (_timer) clearInterval(_timer);

	start_js();

};


/* for Mozilla/Opera9 */
if (document.addEventListener) {
	document.addEventListener("DOMContentLoaded", init, false);
}

/* for Internet Explorer */
/*@cc_on @*/
/*@if (@_win32)
	document.write("<script id=__ie_onload defer src=javascript:void(0)><\/script>");
	var script = document.getElementById("__ie_onload");
	script.onreadystatechange = function() {
		if (this.readyState == "complete") {
			init(); // call the onload handler
		}
	};
/*@end @*/

/* for Safari */
if (/WebKit/i.test(navigator.userAgent)) { // sniff
	var _timer = setInterval(function() {
		if (/loaded|complete/.test(document.readyState)) {
			init(); // call the onload handler
		}
	}, 10);
}

/* for other browsers */
window.onload = init;

var db = (document.body) ? 1 : 0;
var scroll = (window.scrollTo) ? 1 : 0;

function setCookie(name, value, expires, path, domain, secure) {
	  var curCookie = name + "=" + escape(value) +
    ((expires) ? "; expires=" + expires.toGMTString() : "") +
    ((path) ? "; path=" + path : "") +
    ((domain) ? "; domain=" + domain : "") +
    ((secure) ? "; secure" : "");
  	document.cookie = curCookie;
}

function getCookie(name) {
  var dc = document.cookie;
  var prefix = name + "=";
  var begin = dc.indexOf("; " + prefix);
  
  if (begin == -1) {
    begin = dc.indexOf(prefix);
  
	  if (begin != 0) return null;
	  } else {
	    begin += 2;
	  }
  var end = document.cookie.indexOf(";", begin);
  if (end == -1) end = dc.length;
  return unescape(dc.substring(begin + prefix.length, end));
}

 
function start_js() {
  loadScroll();
}

function end_js() {
   alert('end')
	saveScroll();
}