function get_cookie( cookieName )
{
    strValue = false;
    
    if( strCookie = document.cookie )
        {
            if( arrCookie = strCookie.match( new RegExp( cookieName + '=([^;]*)', 'g')))
                {
                    strValue=RegExp.$1;
                }
        }
    return(strValue);
}



function set_cookie(cookieName,cookieValue,intDays)
{
    if(!is_cookie_enabled())
        {
            return false;
        }
        
    objNow = new Date();
    strExp = new Date( objNow.getTime() + ( intDays * 86400000) );
    document.cookie = cookieName + '=' + 
                      cookieValue + ';expires=' + 
                      strExp.toGMTString() + '; path=/';
					  
    return true;
}


function delete_cookie(cookieName)
{
    if(document.cookie)
        {
            document.cookie = cookieName + '=' +
                              get_cookie(cookieName) +
                              ';expires=Thu, 01-Jan-1970 00:00:01 GMT;'; 
            return true;
        }
    return false;
}


function is_cookie_enabled()
{
    if(typeof navigator.cookieEnabled!='undefined')
        {
            return navigator.cookieEnabled;
        }
    
    set_cookie('testcookie','testwert',1);
    
    if(!document.cookie)
        {
            return false;
        }
    
    delete_cookie('testcookie');
    return true;        
}