Position.Window = {
        //extended prototypes position to return
        //the scrolled window deltas
        getDeltas: function() {
            var deltaX =  window.pageXOffset
                || document.documentElement.scrollLeft
                || document.body.scrollLeft
                || 0;
            var deltaY =  window.pageYOffset
                || document.documentElement.scrollTop
                || document.body.scrollTop
                || 0;
            return [deltaX, deltaY];
        },
        //extended prototypes position to
        //return working window's size, 
        //copied this code from the 
        size: function() {
            var winWidth, winHeight, d=document;
            if (typeof window.innerWidth!='undefined') 
			{
                winWidth = window.innerWidth;
                winHeight = window.innerHeight;
            } 
			else 
			{
                if (d.documentElement && typeof d.documentElement.clientWidth!='undefined' && d.documentElement.clientWidth!=0) 
				{
                    winWidth = d.documentElement.clientWidth
                    winHeight = d.documentElement.clientHeight
                } 
					else 
						{
							if (d.body && typeof d.body.clientWidth!='undefined') {
								winWidth = d.body.clientWidth
								winHeight = d.body.clientHeight
                    }
                }
            }
            return [winWidth, winHeight];
        }
    }

	

    //my own custom effect that basically
    //calls the Effect.Move Scriptaculous
    //effect with the correct window offsets
    Effect.KeepFixedBR = function(element, offsetx, offsety) {
        var _scroll = Position.Window.getDeltas();
        var _window = Position.Window.size();
        var elementDimensions = Element.getDimensions(element);
        var eWidth = elementDimensions.width;
        var eHeight = elementDimensions.height;
        var moveX = _window[0] - eWidth + _scroll[0] + offsetx;
        var moveY = _window[1] - eHeight + _scroll[1] + offsety;
        return new Effect.Move(element, { x: moveX, y: moveY, mode: 'absolute' });
    }
	
	 Effect.KeepFixedTR = function(element, offsetx, offsety) {
        var _scroll = Position.Window.getDeltas();
        var _window = Position.Window.size();
        var elementDimensions = Element.getDimensions(element);
        var eWidth = elementDimensions.width;
        var eHeight = elementDimensions.height;
        var moveX = _window[0] - eWidth + _scroll[0] + offsetx;
        var moveY = _scroll[1] + offsety;
        return new Effect.Move(element, { x: moveX, y: moveY, mode: 'absolute', duration:0.1});
    }
	Effect.KeepFixedTR2 = function(element, offsetx, offsety) {
        var _scroll = Position.Window.getDeltas();
        var _window = Position.Window.size();
        var elementDimensions = Element.getDimensions(element);
        var eWidth = elementDimensions.width;
        var eHeight = elementDimensions.height;
        var moveX = _window[0] - eWidth + _scroll[0] + offsetx;
        var moveY = _scroll[1] + offsety;
		$(element).style.left=moveX;
		$(element).style.top=moveY;
//        return new Effect.Move(element, { x: moveX, y: moveY, mode: 'absolute', duration:0.1});
    }

    Effect.KeepFixedCL = function(element, offsetx, offsety) {
        var _scroll = Position.Window.getDeltas();
        var _window = Position.Window.size();
        var elementDimensions = Element.getDimensions(element);
        var eWidth = elementDimensions.width;
        var eHeight = elementDimensions.height;
        var moveY = _scroll[1] +offsety;
        return new Effect.Move(element, { y: moveY, mode: 'absolute', duration:0.2});
    }
   Effect.KeepFixedC = function(element, offsetx, offsety) {
        var _scroll = Position.Window.getDeltas();
        var _window = Position.Window.size();
        var elementDimensions = Element.getDimensions(element);
        var eWidth = elementDimensions.width;
        var eHeight = elementDimensions.height;
        var moveY = _scroll[1] +offsety;
        return new Effect.Move(element, { y: moveY, mode: 'absolute', duration:0.2});
    }

	Element.blockshow =function(element)
	{
		 $(element).style.display = 'block';
		 return element;
	}