var cookieSeparator="; ";

function getCookie(name) {
    var Found = false
    var start, end
    var i = 0

    name=escape(name);

    while(i <= document.cookie.length) {
         start = i
         end = start + name.length
         if(document.cookie.substring(start, end) == name) {
             Found = true
             break
         }
         i++
    }

    if(Found == true) {
        start = end + 1
        end = document.cookie.indexOf(cookieSeparator, start)
        if(end < start)
            end = document.cookie.length
        return unescape(document.cookie.substring(start, end));
    }
    return ""
}

function setCookie( name, value, expiredays, domain )
{
       var todayDate = new Date();
       todayDate.setDate( todayDate.getDate() + expiredays );
       var cookieValue = name + "=" + escape( value ) + cookieSeparator+"path=/"+cookieSeparator
	       	+"expires=" + todayDate.toGMTString() + cookieSeparator
       ;
       if (domain) {
       		cookieValue+="domain="+domain+cookieSeparator;
       }
	 document.cookie=cookieValue;
}

function delCookie(name) {
  setCookie(name, '', new Date().getDate()-1000);
}