//MooTools More, <http://mootools.net/more>. Copyright (c) 2006-2009 Aaron Newton
// included modules: Scroller
//<http://clientcide.com/>, Valerio Proietti <http://mad4milk.net> & the MooTools team <http://mootools.net/developers>, MIT Style License.

MooTools.More={version:"1.2.4.2",build:"bd5a93c0913cce25917c48cbdacde568e15e02ef"};Fx.Scroll=new Class({Extends:Fx,options:{offset:{x:0,y:0},wheelStops:true},initialize:function(b,a){this.element=this.subject=document.id(b);
this.parent(a);var d=this.cancel.bind(this,false);if($type(this.element)!="element"){this.element=document.id(this.element.getDocument().body);}var c=this.element;
if(this.options.wheelStops){this.addEvent("start",function(){c.addEvent("mousewheel",d);},true);this.addEvent("complete",function(){c.removeEvent("mousewheel",d);
},true);}},set:function(){var a=Array.flatten(arguments);if(Browser.Engine.gecko){a=[Math.round(a[0]),Math.round(a[1])];}this.element.scrollTo(a[0],a[1]);
},compute:function(c,b,a){return[0,1].map(function(d){return Fx.compute(c[d],b[d],a);});},start:function(c,g){if(!this.check(c,g)){return this;}var e=this.element.getScrollSize(),b=this.element.getScroll(),d={x:c,y:g};
for(var f in d){var a=e[f];if($chk(d[f])){d[f]=($type(d[f])=="number")?d[f]:a;}else{d[f]=b[f];}d[f]+=this.options.offset[f];}return this.parent([b.x,b.y],[d.x,d.y]);
},toTop:function(){return this.start(false,0);},toLeft:function(){return this.start(0,false);},toRight:function(){return this.start("right",false);},toBottom:function(){return this.start(false,"bottom");
},toElement:function(b){var a=document.id(b).getPosition(this.element);return this.start(a.x,a.y);},scrollIntoView:function(c,e,d){e=e?$splat(e):["x","y"];
var h={};c=document.id(c);var f=c.getPosition(this.element);var i=c.getSize();var g=this.element.getScroll();var a=this.element.getSize();var b={x:f.x+i.x,y:f.y+i.y};
["x","y"].each(function(j){if(e.contains(j)){if(b[j]>g[j]+a[j]){h[j]=b[j]-a[j];}if(f[j]<g[j]){h[j]=f[j];}}if(h[j]==null){h[j]=g[j];}if(d&&d[j]){h[j]=h[j]+d[j];
}},this);if(h.x!=g.x||h.y!=g.y){this.start(h.x,h.y);}return this;},scrollToCenter:function(c,e,d){e=e?$splat(e):["x","y"];c=$(c);var h={},f=c.getPosition(this.element),i=c.getSize(),g=this.element.getScroll(),a=this.element.getSize(),b={x:f.x+i.x,y:f.y+i.y};
["x","y"].each(function(j){if(e.contains(j)){h[j]=f[j]-(a[j]-i[j])/2;}if(h[j]==null){h[j]=g[j];}if(d&&d[j]){h[j]=h[j]+d[j];}},this);if(h.x!=g.x||h.y!=g.y){this.start(h.x,h.y);
}return this;}});

/* A workaround for IE issues in mootools 1.2.1
 * - Recreates FX.Scroll() but utilises 1.2.0's getPosition/getOffset routines.
 */
Fx.Scroll2 = new Class({

    'Extends': Fx.Scroll,

    'styleString': Element.getComputedStyle,
    'styleNumber': function(element, style) {
        return this.styleString(element, style).toInt() || 0;
    },
    'borderBox': function(element) {
        return this.styleString(element, '-moz-box-sizing') == 'border-box';
    },
    'topBorder': function(element) {
        return this.styleNumber(element, 'border-top-width');
    },
    'leftBorder': function(element) {
        return this.styleNumber(element, 'border-left-width');
    },
    'isBody': function(element) {
        return (/^(?:body|html)$/i).test(element.tagName);
    },
    'toElement': function(el) {
        var offset   = {x: 0, y: 0};
        var element  = $(el);

        if (this.isBody(element)) {
            return offset;
        }
        var scroll = element.getScrolls();

        while (element && !this.isBody(element)){
            offset.x += element.offsetLeft;
            offset.y += element.offsetTop;

            if (Browser.Engine.gecko){
                if (!this.borderBox(element)){
                    offset.x += this.leftBorder(element);
                    offset.y += this.topBorder(element);
                }
                var parent = element.parentNode;
                if (parent && this.styleString(parent, 'overflow') != 'visible'){
                    offset.x += this.leftBorder(parent);
                    offset.y += this.topBorder(parent);
                }
            } else if (Browser.Engine.trident || Browser.Engine.webkit){
                offset.x += this.leftBorder(element);
                offset.y += this.topBorder(element);
            }

            element = element.offsetParent;
            if (Browser.Engine.trident) {
                while (element && !element.currentStyle.hasLayout) {
                    element = element.offsetParent;
                }
            }
        }
        if (Browser.Engine.gecko && !this.borderBox(element)){
            offset.x -= this.leftBorder(element);
            offset.y -= this.topBorder(element);
        }

        var relative = this.element;
        var relativePosition = (relative && (relative = $(relative))) ? relative.getPosition() : {x: 0, y: 0};
        var position = {x: offset.x - scroll.x, y: offset.y - scroll.y};

        return this.start(position.x - relativePosition.x, position.y - relativePosition.y);
    }
});