function getCookie(name){
    var nameOfCookie = name + "=";
    var x = 0;
    while ( x <= document.cookie.length ){
        var y = (x+nameOfCookie.length);
        if ( document.cookie.substring( x, y ) == nameOfCookie ) {
            if ( (endOfCookie=document.cookie.indexOf( ";", y )) == -1 ) {
                endOfCookie = document.cookie.length;
            }
            return unescape( document.cookie.substring( y, endOfCookie ) );
        }
        x = document.cookie.indexOf( " ", x ) + 1;
        if ( x == 0 )
        break;
    }
    return "";
}


function setCookie ( name, value, expiredays, domainname)
{
	var todayDate = new Date();
	var cookieStr;

	todayDate.setDate( todayDate.getDate() + expiredays );
	cookieStr = name + "=" + escape( value ) + "; path=/; expires=" + todayDate.toGMTString() + ";domain=" + domainname + ";"
	document.cookie = cookieStr;
}