function trim(form, field, value) {
    str = value;
    value = str.replace(/^\s*|\s*$/g, "");
    if (value == "")
        return false;
    else
        return true;
}

function bookmark() {
    var nVer = navigator.appVersion;
    var nAgt = navigator.userAgent;
    var browserName = navigator.appName;
    //var fullVersion = ''+parseFloat(navigator.appVersion);
    //var majorVersion = parseInt(navigator.appVersion,10);
    var nameOffset, verOffset, ix;
    var title = 'The Studio System';
    var url = 'http://studiosystem.com/?action=cmsLogin';
    if ((verOffset = nAgt.indexOf("MSIE")) != -1) {
        browserName = "Microsoft Internet Explorer";
        // fullVersion = nAgt.substring(verOffset+5);
    }
    else if ((verOffset = nAgt.indexOf("Firefox")) != -1) {
        browserName = "Firefox";
        // fullVersion = nAgt.substring(verOffset+8);
    }
    else if ((verOffset = nAgt.indexOf("Opera")) != -1) {
        browserName = "Opera";
        //fullVersion = nAgt.substring(verOffset+6);
    }
    // In Chrome, the true version is after "Chrome"
    else if ((verOffset = nAgt.indexOf("Chrome")) != -1) {
        browserName = "Chrome";
        //fullVersion = nAgt.substring(verOffset+7);
    }
    // In Safari, the true version is after "Safari"
    else if ((verOffset = nAgt.indexOf("Safari")) != -1) {
        browserName = "Safari";
        //fullVersion = nAgt.substring(verOffset+7);
    }
    //alert(browserName);
    //alert(nAgt);
    if (browserName == "Microsoft Internet Explorer" || browserName == "Firefox") {
        if (document.all)
            window.external.AddFavorite(url, title);
        else if (window.sidebar)
            window.sidebar.addPanel(title, url, "")
        else if (window.sidebar && window.sidebar.addPanel)
            window.sidebar.addPanel(title, url, "");
    }
    else if (browserName == "Opera") {
        alert("Press 'CTRL+T' to bookmark this site.");
    }
    else if (browserName == "Chrome") {
        alert("Press 'CTRL+Shift+B' to bookmark this site.");
    }
    else if (browserName == "Safari") {
        alert("Press 'CTRL+D' to bookmark this site.");
    }
}