function getDataFromCookie( cookieName ){
	labelName = cookieName;
	var labelLen = labelName.length;
	var cookieData = document.cookie;
	var cLen = cookieData.length;
	var i = 0;
	var cEnd;
	var selected_value = '';
	while (i < cLen) {
		var j = i + labelLen;
		if (cookieData.substring(i,j) == labelName) {
			cEnd = cookieData.indexOf(';',j);

		if (cEnd == -1) {
			cEnd = cookieData.length;
		}

		selected_value =  unescape(cookieData.substring(j+1, cEnd));
		}
		i++;
	}

	return selected_value;

}

function setDataToCookie( cookieName, value ){
	var exp = new Date();
	var oneYearFromNow = exp.getTime() + (365 * 24 * 60 * 60 * 1000);
	exp.setTime(oneYearFromNow);
	document.cookie = cookieName + "=" + value + "; expires=" + exp.toGMTString() + "; path=/;";
}

function setScrollBack()
{
	
	if (navigator.appName == "Microsoft Internet Explorer")
   {
      scroll=document.body.scrollTop;
   }
   else
   {
      scroll=window.pageYOffset;
   }
   setDataToCookie('scrollPos', scroll);
   
}

function updateScrollBack()
{
	pos = getDataFromCookie('scrollPos');

	if (pos)
	{
		window.scrollTo(0, pos);
		setDataToCookie('scrollPos', '');
	}
}