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);
		}
		i = document.cookie.indexOf(" ", i) + 1;
		if(i == 0) break;
	}
	return 0;
}

function setCookie(c_name,value,expiredays)
{
	var exdate=new Date();
	exdate.setDate(exdate.getDate()+expiredays);
	setFullCookie(c_name, value,exdate.toGMTString(), "/","","");  
}

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


function checkCookie(c_name, c_defaultValue, c_defaultDays)
{
	var oCookie;
	oCookie=getCookie(c_name);
	if (oCookie!=null && oCookie!="" && oCookie!=0) {
	  return oCookie;
	}
	else {
	  setCookie(c_name,c_defaultValue,c_defaultDays);
		return getCookie(c_name);
	}
}

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";
	}
}


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