function launchSiteTour() {
    var openwin_props;
    var s_comma = ',';
    var s_status = 'status=0';
    var s_resizable = 'resizable=0';
    var s_toolbar = 'toolbar=0';
    var s_scrollbars = 'scrollbars=0';
    var w = 734;
    var h = 576;
    openwin_left = (screen.width - w) / 2;
    openwin_top = (screen.height - h) / 2;

    s_height = 'height=' + (h + 32);
    s_width = 'width=' + w;
    s_top = 'top=' +  (openwin_top-5);
    s_left = 'left=' +  openwin_left
    
    openwin_props = s_status
                  + s_comma
                  + s_top
                  + s_comma
                  + s_left
                  + s_comma
                  + s_width
                  + s_comma
                  + s_height
                  + s_comma
                  + s_toolbar
                  + s_comma
                  + s_resizable
                  + s_comma
                  + s_scrollbars;
    // if (!confirm(openwin_props)) return;
//	window.open('/main/sitetour', '_blank', openwin_props);
    window.open('/javascripts/bureader/index.html?b=/images/sitetour&n=15&p=Slide', '_blank', openwin_props);
}


function bookmark(site) {
    var url = location.href;
	if (url.indexOf("/main/tellafriend") >= 0 || url.indexOf("signup") >= 0)
	    url = "http://www.biguniverse.com/"

    url = url.replace(/^http:\/\/[a-z]+\.u\./i,'http://www.');
    //url = "http://biguniverse.com" // url.replace(/^http:\/\/[a-z]+\.u\./i,'http://www.');
    encodedurl = encodeURIComponent(url);
    var encodedtitle = encodeURIComponent(document.title);
	

    var serviceUrl = null;
    if (site == 'delicious') {
        sharesiteURL = 'http://del.icio.us/post?v=4&noui&jump=close'
            + '&url='      + encodedurl
            + '&title='    + encodedtitle;
    } else if (site == 'digg') {
        sharesiteURL = 'http://digg.com/submit?phase=2'
            + '&url='      + encodedurl
            + '&title='    + encodedtitle;
    } else if (site == 'fark') {
        sharesiteURL = 'http://www.fark.com/cgi/fark/submit.pl'
            + '?new_url='     + encodedurl
            + '&new_comment=' + encodedtitle;
    } else if (site == 'google') {
        sharesiteURL = 'http://www.google.com/bookmarks/mark?op=add'
            + '&bkmk='       + encodedurl
            + '&title='      + encodedtitle
            + '&labels='     + ''
            + '&annotation=' + '';
    } else if (site == 'yahoo') {
        sharesiteURL = 'http://myweb2.search.yahoo.com/myresults/bookmarklet?referrer=yahoo'
            + '&u='          + encodedurl
            + '&t='      + encodedtitle;
    } else if (site == 'facebook') {
        sharesiteURL = 'http://www.facebook.com/share.php?'
            + '&u='      + encodedurl
            + '&t='      + encodedtitle;
    } else if (site == 'newsvine') {
        sharesiteURL = 'http://www.newsvine.com/_tools/seed&save'
            + '?u='      + encodedurl;
    } else if (site == 'reddit') {
        sharesiteURL = 'http://reddit.com/submit'
            + '?url='      + encodedurl
            + '&title='    + encodedtitle;
    } else if (site == 'slashdot') {
        sharesiteURL = 'http://slashdot.org/bookmark.pl'
            + '?url='   + encodedurl
            + '&title=' + encodedtitle;
    } else if (site == 'twitter') {
        sharesiteURL = 'http://twitter.com/home'
            + "?status=Reading, creating and sharing beautiful children's picture books on http://www.biguniverse.com/";
    } else if (site == 'technorati') {
        sharesiteURL = 'http://technorati.com/faves?sub=favthis'
            + '&add=' + encodedurl;
    } else if (site == 'stumbleupon') {
        sharesiteURL = 'http://www.stumbleupon.com/submit'
            + '?url='      + encodedurl
            + '&title='    + encodedtitle;
    }

    if ( sharesiteURL != null ) {
        var theNewWin = window.open(sharesiteURL, 'bubookmark', 'width=900,height=640,resizable=yes,toolbar=no,location=no,scrollbars=yes');
        if ( typeof theNewWin != "undefined" &&
             theNewWin != null ) {
            theNewWin.focus();
        }
    }
}