function getExpDate(days, hours, minutes)
{
	var expDate = new Date();
	if(typeof days == "number" && typeof hours == "number" && typeof minutes == "number" )
	{
		expDate.setDate(expDate.getDate() + parseInt(days));
		expDate.setHours(expDate.getHours() + parseInt(hours));
		expDate.setMinutes(expDate.getMinutes() + parseInt(minutes));
		return expDate.toGMTString();
	}
}

function getCookieVal(offset)
{
	var endstr = document.cookie.indexOf(";", offset);
	if(endstr == -1)
	{
	endstr = document.cookie.length;
	}
	return unescape(document.cookie.substring(offset, endstr));
}

function getCookie(name)
{
	var arg = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i=0;
	while(i< clen)
	{
		var j = i + alen;
		if(document.cookie.substring(i,j) == arg)
		{
			return getCookieVal(j);
		}//end if
		i = document.cookie.indexOf(" " , i) + 1;
		if(i == 0)break; 
	}//end while

	return "";

}

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

}

//remove the cookie by setting ancient expiration date

function deleteCookie(name, path, domain)
{
if(getCookie(name))
{
document.cookie = name + "=" +((path)? "; path=" + path : "")+((domain)? "; domain=" + domain : "")+"; expires=Thu, 01-Jan-70 00:00:01 GMT";
}//end if
}