if (typeof YAHOO == "undefined") {
    var YAHOO = {};
}

YAHOO.namespace = function() {
    var a=arguments, o=null, i, j, d;
    for (i=0; i<a.length; i=i+1) {
        d=a[i].split(".");
        o=YAHOO;
        for (j=(d[0] == "YAHOO") ? 1 : 0; j<d.length; j=j+1) {
            o[d[j]]=o[d[j]] || {};
            o=o[d[j]];
        }
    }

    return o;
};

YAHOO.log = function(msg, cat, src) {
    var l=YAHOO.widget.Logger;
    if(l && l.log) {
        return l.log(msg, cat, src);
    } else {
        return false;
    }
};

YAHOO.register = function(name, mainClass, data) {
    var mods = YAHOO.env.modules;
    if (!mods[name]) {
        mods[name] = { versions:[], builds:[] };
    }
    var m=mods[name],v=data.version,b=data.build,ls=YAHOO.env.listeners;
    m.name = name;
    m.version = v;
    m.build = b;
    m.versions.push(v);
    m.builds.push(b);
    m.mainClass = mainClass;
    // fire the module load listeners
    for (var i=0;i<ls.length;i=i+1) {
        ls[i](m);
    }
    // label the main class
    if (mainClass) {
        mainClass.VERSION = v;
        mainClass.BUILD = b;
    } else {
        YAHOO.log("mainClass is undefined for module " + name, "warn");
    }
};

YAHOO.env = YAHOO.env || {

    modules: [],
    
    listeners: []
};

YAHOO.env.getVersion = function(name) {
    return YAHOO.env.modules[name] || null;
};

YAHOO.env.ua = function() {
    var o={

        ie:0,
        opera:0,
        gecko:0,

        webkit:0
    };

    var ua=navigator.userAgent, m;
    if ((/KHTML/).test(ua)) {
        o.webkit=1;
    }
    m=ua.match(/AppleWebKit\/([^\s]*)/);
    if (m&&m[1]) {
        o.webkit=parseFloat(m[1]);
    }

    if (!o.webkit) { // not webkit
        m=ua.match(/Opera[\s\/]([^\s]*)/);
        if (m&&m[1]) {
            o.opera=parseFloat(m[1]);
        } else { // not opera or webkit
            m=ua.match(/MSIE\s([^;]*)/);
            if (m&&m[1]) {
                o.ie=parseFloat(m[1]);
            } else { // not opera, webkit, or ie
                m=ua.match(/Gecko\/([^\s]*)/);
                if (m) {
                    o.gecko=1; // Gecko detected, look for revision
                    m=ua.match(/rv:([^\s\)]*)/);
                    if (m&&m[1]) {
                        o.gecko=parseFloat(m[1]);
                    }
                }
            }
        }
    }
    
    return o;
}();

(function() {
    YAHOO.namespace("util", "widget", "example");
    if ("undefined" !== typeof YAHOO_config) {
        var l=YAHOO_config.listener,ls=YAHOO.env.listeners,unique=true,i;
        if (l) {
            for (i=0;i<ls.length;i=i+1) {
                if (ls[i]==l) {
                    unique=false;
                    break;
                }
            }
            if (unique) {
                ls.push(l);
            }
        }
    }
})();
YAHOO.lang = {
    isArray: function(o) { 

        if (o) {
           var l = YAHOO.lang;
           return l.isNumber(o.length) && l.isFunction(o.splice) && 
                  !l.hasOwnProperty(o.length);
        }
        return false;
    },

    isBoolean: function(o) {
        return typeof o === 'boolean';
    },
    
    isFunction: function(o) {
        return typeof o === 'function';
    },
        
    isNull: function(o) {
        return o === null;
    },
        
    isNumber: function(o) {
        return typeof o === 'number' && isFinite(o);
    },
      
    isObject: function(o) {
return (o && (typeof o === 'object' || YAHOO.lang.isFunction(o))) || false;
    },
        
    isString: function(o) {
        return typeof o === 'string';
    },
        
    isUndefined: function(o) {
        return typeof o === 'undefined';
    },
    
    hasOwnProperty: function(o, prop) {
        if (Object.prototype.hasOwnProperty) {
            return o.hasOwnProperty(prop);
        }
        
        return !YAHOO.lang.isUndefined(o[prop]) && 
                o.constructor.prototype[prop] !== o[prop];
    },
 
    _IEEnumFix: function(r, s) {
        if (YAHOO.env.ua.ie) {
            var add=["toString", "valueOf"], i;
            for (i=0;i<add.length;i=i+1) {
                var fname=add[i],f=s[fname];
                if (YAHOO.lang.isFunction(f) && f!=Object.prototype[fname]) {
                    r[fname]=f;
                }
            }
        }
    },
    extend: function(subc, superc, overrides) {
        if (!superc||!subc) {
            throw new Error("YAHOO.lang.extend failed, please check that " +
                            "all dependencies are included.");
        }
        var F = function() {};
        F.prototype=superc.prototype;
        subc.prototype=new F();
        subc.prototype.constructor=subc;
        subc.superclass=superc.prototype;
        if (superc.prototype.constructor == Object.prototype.constructor) {
            superc.prototype.constructor=superc;
        }
    
        if (overrides) {
            for (var i in overrides) {
                subc.prototype[i]=overrides[i];
            }

            YAHOO.lang._IEEnumFix(subc.prototype, overrides);
        }
    },
    augmentObject: function(r, s) {
        if (!s||!r) {
            throw new Error("Absorb failed, verify dependencies.");
        }
        var a=arguments, i, p, override=a[2];
        if (override && override!==true) { // only absorb the specified properties
            for (i=2; i<a.length; i=i+1) {
                r[a[i]] = s[a[i]];
            }
        } else { // take everything, overwriting only if the third parameter is true
            for (p in s) { 
                if (override || !r[p]) {
                    r[p] = s[p];
                }
            }
            
            YAHOO.lang._IEEnumFix(r, s);
        }
    },
    augmentProto: function(r, s) {
        if (!s||!r) {
            throw new Error("Augment failed, verify dependencies.");
        }
        //var a=[].concat(arguments);
        var a=[r.prototype,s.prototype];
        for (var i=2;i<arguments.length;i=i+1) {
            a.push(arguments[i]);
        }
        YAHOO.lang.augmentObject.apply(this, a);
    },

    dump: function(o, d) {
        var l=YAHOO.lang,i,len,s=[],OBJ="{...}",FUN="f(){...}",
            COMMA=', ', ARROW=' => ';
        if (!l.isObject(o)) {
            return o + "";
        } else if (o instanceof Date || ("nodeType" in o && "tagName" in o)) {
            return o;
        } else if  (l.isFunction(o)) {
            return FUN;
        }

        d = (l.isNumber(d)) ? d : 3;

        if (l.isArray(o)) {
            s.push("[");
            for (i=0,len=o.length;i<len;i=i+1) {
                if (l.isObject(o[i])) {
                    s.push((d > 0) ? l.dump(o[i], d-1) : OBJ);
                } else {
                    s.push(o[i]);
                }
                s.push(COMMA);
            }
            if (s.length > 1) {
                s.pop();
            }
            s.push("]");
        // objects {k1 => v1, k2 => v2}
        } else {
            s.push("{");
            for (i in o) {
                if (l.hasOwnProperty(o, i)) {
                    s.push(i + ARROW);
                    if (l.isObject(o[i])) {
                        s.push((d > 0) ? l.dump(o[i], d-1) : OBJ);
                    } else {
                        s.push(o[i]);
                    }
                    s.push(COMMA);
                }
            }
            if (s.length > 1) {
                s.pop();
            }
            s.push("}");
        }

        return s.join("");
    },

    substitute: function (s, o, f) {
        var i, j, k, key, v, meta, l=YAHOO.lang, saved=[], token, 
            DUMP='dump', SPACE=' ', LBRACE='{', RBRACE='}';


        for (;;) {
            i = s.lastIndexOf(LBRACE);
            if (i < 0) {
                break;
            }
            j = s.indexOf(RBRACE, i);
            if (i + 1 >= j) {
                break;
            }

            //Extract key and meta info 
            token = s.substring(i + 1, j);
            key = token;
            meta = null;
            k = key.indexOf(SPACE);
            if (k > -1) {
                meta = key.substring(k + 1);
                key = key.substring(0, k);
            }

            // lookup the value
            v = o[key];

            // if a substitution function was provided, execute it
            if (f) {
                v = f(key, v, meta);
            }

            if (l.isObject(v)) {
                if (l.isArray(v)) {
                    v = l.dump(v, parseInt(meta, 10));
                } else {
                    meta = meta || "";

                    // look for the keyword 'dump', if found force obj dump
                    var dump = meta.indexOf(DUMP);
                    if (dump > -1) {
                        meta = meta.substring(4);
                    }

                    // use the toString if it is not the Object toString 
                    // and the 'dump' meta info was not found
                    if (v.toString===Object.prototype.toString||dump>-1) {
                        v = l.dump(v, parseInt(meta, 10));
                    } else {
                        v = v.toString();
                    }
                }
            } else if (!l.isString(v) && !l.isNumber(v)) {
                // This {block} has no replace string. Save it for later.
                v = "~-" + saved.length + "-~";
                saved[saved.length] = token;

                // break;
            }

            s = s.substring(0, i) + v + s.substring(j + 1);


        }

        // restore saved {block}s
        for (i=saved.length-1; i>=0; i=i-1) {
            s = s.replace(new RegExp("~-" + i + "-~"), "{"  + saved[i] + "}", "g");
        }

        return s;
    },

    trim: function(s){
        try {
            return s.replace(/^\s+|\s+$/g, "");
        } catch(e) {
            return s;
        }
    },

    merge: function() {
        var o={}, a=arguments, i;
        for (i=0; i<a.length; i=i+1) {
            YAHOO.lang.augmentObject(o, a[i], true);
        }
        return o;
    },
    isValue: function(o) {
        // return (o || o === false || o === 0 || o === ''); // Infinity fails
        var l = YAHOO.lang;
return (l.isObject(o) || l.isString(o) || l.isNumber(o) || l.isBoolean(o));
    }

};

YAHOO.util.Lang = YAHOO.lang;
 
YAHOO.lang.augment = YAHOO.lang.augmentProto;

YAHOO.augment = YAHOO.lang.augmentProto;
       
YAHOO.extend = YAHOO.lang.extend;

YAHOO.register("yahoo", YAHOO, {version: "2.3.1", build: "541"});