/**
 * jQuery.ScrollTo - Easy element scrolling using jQuery.
 * Copyright (c) 2007-2009 Ariel Flesler - aflesler(at)gmail(dot)com | http://flesler.blogspot.com
 * Dual licensed under MIT and GPL.
 * Date: 5/25/2009
 * @author Ariel Flesler
 * @version 1.4.2
 *
 * http://flesler.blogspot.com/2007/10/jqueryscrollto.html
 */

(function($){
    var k=$.scrollTo=function(a,i,e){
        $(window).scrollTo(a,i,e)
    };

    k.defaults={
        axis:'xy',
        duration:parseFloat($.fn.jquery)>=1.3?0:1
    };

    k.window=function(a){
        return $(window)._scrollable()
    };

    $.fn._scrollable=function(){
        return this.map(function(){
            var a=this,i=!a.nodeName||$.inArray(a.nodeName.toLowerCase(),['iframe','#document','html','body'])!=-1;
            if(!i)return a;
            var e=(a.contentWindow||a).document||a.ownerDocument||a;
            return $.browser.safari||e.compatMode=='BackCompat'?e.body:e.documentElement
        })
    };

    $.fn.scrollTo=function(n,j,b){
        if(typeof j=='object'){
            b=j;
            j=0
        }
        if(typeof b=='function')b={
            onAfter:b
        };

        if(n=='max')n=9e9;
        b=$.extend({},k.defaults,b);
        j=j||b.speed||b.duration;
        b.queue=b.queue&&b.axis.length>1;
        if(b.queue)j/=2;
        b.offset=p(b.offset);
        b.over=p(b.over);
        return this._scrollable().each(function(){
            var q=this,r=$(q),f=n,s,g={},u=r.is('html,body');
            switch(typeof f){
                case'number':case'string':
                    if(/^([+-]=)?\d+(\.\d+)?(px|%)?$/.test(f)){
                        f=p(f);
                        break
                    }
                    f=$(f,this);
                case'object':
                    if(f.is||f.style)s=(f=$(f)).offset()
            }
            $.each(b.axis.split(''),function(a,i){
                var e=i=='x'?'Left':'Top',h=e.toLowerCase(),c='scroll'+e,l=q[c],m=k.max(q,i);
                if(s){
                    g[c]=s[h]+(u?0:l-r.offset()[h]);
                    if(b.margin){
                        g[c]-=parseInt(f.css('margin'+e))||0;
                        g[c]-=parseInt(f.css('border'+e+'Width'))||0
                    }
                    g[c]+=b.offset[h]||0;
                    if(b.over[h])g[c]+=f[i=='x'?'width':'height']()*b.over[h]
                }else{
                    var o=f[h];
                    g[c]=o.slice&&o.slice(-1)=='%'?parseFloat(o)/100*m:o
                }
                if(/^\d+$/.test(g[c]))g[c]=g[c]<=0?0:Math.min(g[c],m);
                if(!a&&b.queue){
                    if(l!=g[c])t(b.onAfterFirst);
                    delete g[c]
                }
            });
            t(b.onAfter);
            function t(a){
                r.animate(g,j,b.easing,a&&function(){
                    a.call(this,n,b)
                })
            }
        }).end()
    };

    k.max=function(a,i){
        var e=i=='x'?'Width':'Height',h='scroll'+e;
        if(!$(a).is('html,body'))return a[h]-$(a)[e.toLowerCase()]();
        var c='client'+e,l=a.ownerDocument.documentElement,m=a.ownerDocument.body;
        return Math.max(l[h],m[h])-Math.min(l[c],m[c])
    };

    function p(a){
        return typeof a=='object'?a:{
            top:a,
            left:a
        }
    }
})(jQuery);