//load position
function loadScroll(me) {
  var xy = getCookie(me); 
  if (!xy) {
  
  return;
  }
  var ar = xy.split("_");
  var a=document.getElementById(me);
  top=(document.documentElement && document.documentElement.scrollTop) ? document.documentElement.scrollTop : (document.body.scrollTop ? document.body.scrollTop : 0);
  
  if (ar.length == 2) {
  
 document.documentElement.scrollTop=parseInt(ar[1]);
 document.body.scrollTop=parseInt(ar[1]);
 
  
  }
 
 
}




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

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 AttachEvent(obj,evt,fnc,useCapture){
if (obj==document) { obj2=window;} else {obj2=obj;}
	if (!useCapture) useCapture=false;
	if (obj.addEventListener){
		obj.addEventListener(evt,fnc,useCapture);
		return true;
	} else if (obj2.attachEvent) return obj2.attachEvent("on"+evt,fnc);
	else{
	 
	MyAttachEvent(obj2,evt,fnc);
	
	obj['on'+evt]=function(){ MyFireEvent(obj,evt) };
	}
} 

function MyAttachEvent(obj,evt,fnc){
	if (!obj.myEvents) obj.myEvents={};
	if (!obj.myEvents[evt]) obj.myEvents[evt]=[];
	var evts = obj.myEvents[evt];
	evts[evts.length]=fnc;
}

function MyFireEvent(obj,evt){
	if (!obj || !obj.myEvents || !obj.myEvents[evt]) return;
	var evts = obj.myEvents[evt];
	for (var i=0,len=evts.length;i<len;i++) evts[i]();
}
 

function action(ty) {
  saveScroll(ty);
}
  
function keepScroll(trg,isbody) {
loadScroll(trg);
 
if (isbody==false) {
 AttachEvent(document.getElementById(trg),'scroll',function () { action(trg); },false);
 }else {
 AttachEvent(document,'scroll',function () { action(trg); },false);
}

}