var Scriptaculous = {
    Version: '1.5.1',
    require: function(libraryName) {
        // inserting via DOM fails in Safari 2.0, so brute force approach
        document.write('<script type="text/javascript" src="'+libraryName+'"></script>');
    },
    load: function() {
        if (
            (typeof Prototype=='undefined') ||
            (parseFloat(Prototype.Version.split(".")[0] + "." + Prototype.Version.split(".")[1]) < 1.4)
        ) {
            // alert("Scriptaculous requires the Prototype JavaScript framework >= 1.4.0");
            return;
        }
        $A(document.getElementsByTagName("script")).findAll(function(s) {
            return (s.src && s.src.match(/scriptaculous\.js(\?.*)?$/))
        }).each( function(s) {
            var path = s.src.replace(/scriptaculous\.js(\?.*)?$/,'');
            var includes = s.src.match(/\?.*load=([a-z,]*)/);
            (includes ? includes[1] : 'builder,effects,dragdrop,controls,slider').split(',').each(function(include) { 
                Scriptaculous.require(path+include+'.js') 
            });
        });
    }
}
Scriptaculous.load();