function view( pageid )
{
    var height = screen.height;
    var width = screen.width;
    
    // sessie cookie
    var cookieValue = getCookie( 'sessionStart' )
    if ( !cookieValue )
    {
        var vandaag = new Date();
        var cookieValue = vandaag.toGMTString();
        setCookie( 'sessionStart', cookieValue );
    }
    // --
    
    var ref = String( document.referrer || '' );    
    var url = "http://stats.helderinternet.nl/view.asp?id=" + pageid + "&h=" + height + "&w=" + width + "&sessionstart=" + cookieValue + "&ref=" + ref;
    document.write( '<img src="' + url + '" height="1" width="1" style="visibility:hidden; display:none" />' );
}

function setCookie( name, value, expireDate ) 
{
    var cookie = name + "=" + escape(value);
    if( expireDate )
    {
        expires = expires.toGMTString();
        cookie += "; expires="; 
        cookie += expires; 
    }
    document.cookie = cookie;
}

function getCookie( name ) 
{
    var r = '';
    
    var cookie = document.cookie;
    var begin = 0;
    var end = 0;
    
    if ( cookie.indexOf( name + '=' ) > -1 ) 
    {
        begin = cookie.indexOf( name + '=' ) + name.length + 1   
    }       
    end = document.cookie.indexOf(";", begin);
    if ( end == -1 )
    {
        end = cookie.length;
    }    
    
    if ( begin && end )
    {
        r = unescape( cookie.substring( begin, end ) );
    }
    
    return r;
}