// JavaScript Document
function delCookie (NameOfCookie)
	{if (getCookie(NameOfCookie)) {
	document.cookie = NameOfCookie + "=" +
	"; expires=Thu, 01-Jan-70 00:00:01 GMT";
	}
}
function setCookie(NameOfCookie, value, expiredays)
	{var ExpireDate = new Date ();
	ExpireDate.setTime(ExpireDate.getTime() + (expiredays * 24 * 3600 * 1000));
	document.cookie = NameOfCookie + "=" + escape(value) +
	((expiredays == null) ? "" : "; expires=" + ExpireDate.toGMTString());
}
function getCookie(NameOfCookie)
	{if (document.cookie.length > 0)
	{begin = document.cookie.indexOf(NameOfCookie+"=");
	if (begin != -1) 
	{begin += NameOfCookie.length+1;
	end = document.cookie.indexOf(";", begin);
	if (end == -1) end = document.cookie.length;
	return unescape(document.cookie.substring(begin, end)); }
	}return null;
}
function findY(off){
	if(document.body.scrollTop != null && document.body.scrollTop != 0) return document.body.scrollTop -off;
	if(this.scrollTop!= null && this.scrollTop != 0) return this.scrollTop-off;
	if(window.pageYOffset != null &&  window.pageYOffset != 0) return window.pageYOffset-off;
	return 0;
}