var NS4 = (document.layers) ? true : false;

function fromVSP() {
    re = new RegExp("fromvsp=Y");
    return re.exec( window.location ) != null;
}

function navTo( url ) {
    if( fromVSP() ) {
        chk = new RegExp("^#");
        if( chk.exec( url) ) {
            if( NS4 ) {
                window.location =  url;
            } else {
                window.location =  '?fromvsp=Y'+url;
            }
        } else {
            window.location =  url + '?fromvsp=Y';
        }
    } else {
        window.location =  url;
    }
}