/**
 * AnimaDrag
 * Animated jQuery Drag and Drop Plugin
 * Version 0.5.1 beta
 * Author Abel Mohler
 * Released with the MIT License: http://www.opensource.org/licenses/mit-license.php
 */
 
 jQuery.easing['jswing'] = jQuery.easing['swing'];

jQuery.extend( jQuery.easing,
{
	def: 'easeOutQuad',
	swing: function (x, t, b, c, d) {
		//alert(jQuery.easing.default);
		return jQuery.easing[jQuery.easing.def](x, t, b, c, d);
	},
	easeInQuad: function (x, t, b, c, d) {
		return c*(t/=d)*t + b;
	},
	easeOutQuad: function (x, t, b, c, d) {
		return -c *(t/=d)*(t-2) + b;
	},
	easeInOutQuad: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return c/2*t*t + b;
		return -c/2 * ((--t)*(t-2) - 1) + b;
	},
	easeInCubic: function (x, t, b, c, d) {
		return c*(t/=d)*t*t + b;
	},
	easeOutCubic: function (x, t, b, c, d) {
		return c*((t=t/d-1)*t*t + 1) + b;
	},
	easeInOutCubic: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return c/2*t*t*t + b;
		return c/2*((t-=2)*t*t + 2) + b;
	},
	easeInQuart: function (x, t, b, c, d) {
		return c*(t/=d)*t*t*t + b;
	},
	easeOutQuart: function (x, t, b, c, d) {
		return -c * ((t=t/d-1)*t*t*t - 1) + b;
	},
	easeInOutQuart: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return c/2*t*t*t*t + b;
		return -c/2 * ((t-=2)*t*t*t - 2) + b;
	},
	easeInQuint: function (x, t, b, c, d) {
		return c*(t/=d)*t*t*t*t + b;
	},
	easeOutQuint: function (x, t, b, c, d) {
		return c*((t=t/d-1)*t*t*t*t + 1) + b;
	},
	easeInOutQuint: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return c/2*t*t*t*t*t + b;
		return c/2*((t-=2)*t*t*t*t + 2) + b;
	},
	easeInSine: function (x, t, b, c, d) {
		return -c * Math.cos(t/d * (Math.PI/2)) + c + b;
	},
	easeOutSine: function (x, t, b, c, d) {
		return c * Math.sin(t/d * (Math.PI/2)) + b;
	},
	easeInOutSine: function (x, t, b, c, d) {
		return -c/2 * (Math.cos(Math.PI*t/d) - 1) + b;
	},
	easeInExpo: function (x, t, b, c, d) {
		return (t==0) ? b : c * Math.pow(2, 10 * (t/d - 1)) + b;
	},
	easeOutExpo: function (x, t, b, c, d) {
		return (t==d) ? b+c : c * (-Math.pow(2, -10 * t/d) + 1) + b;
	},
	easeInOutExpo: function (x, t, b, c, d) {
		if (t==0) return b;
		if (t==d) return b+c;
		if ((t/=d/2) < 1) return c/2 * Math.pow(2, 10 * (t - 1)) + b;
		return c/2 * (-Math.pow(2, -10 * --t) + 2) + b;
	},
	easeInCirc: function (x, t, b, c, d) {
		return -c * (Math.sqrt(1 - (t/=d)*t) - 1) + b;
	},
	easeOutCirc: function (x, t, b, c, d) {
		return c * Math.sqrt(1 - (t=t/d-1)*t) + b;
	},
	easeInOutCirc: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return -c/2 * (Math.sqrt(1 - t*t) - 1) + b;
		return c/2 * (Math.sqrt(1 - (t-=2)*t) + 1) + b;
	},
	easeInElastic: function (x, t, b, c, d) {
		var s=1.70158;var p=0;var a=c;
		if (t==0) return b;  if ((t/=d)==1) return b+c;  if (!p) p=d*.3;
		if (a < Math.abs(c)) { a=c; var s=p/4; }
		else var s = p/(2*Math.PI) * Math.asin (c/a);
		return -(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
	},
	easeOutElastic: function (x, t, b, c, d) {
		var s=1.70158;var p=0;var a=c;
		if (t==0) return b;  if ((t/=d)==1) return b+c;  if (!p) p=d*.3;
		if (a < Math.abs(c)) { a=c; var s=p/4; }
		else var s = p/(2*Math.PI) * Math.asin (c/a);
		return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) + c + b;
	},
	easeInOutElastic: function (x, t, b, c, d) {
		var s=1.70158;var p=0;var a=c;
		if (t==0) return b;  if ((t/=d/2)==2) return b+c;  if (!p) p=d*(.3*1.5);
		if (a < Math.abs(c)) { a=c; var s=p/4; }
		else var s = p/(2*Math.PI) * Math.asin (c/a);
		if (t < 1) return -.5*(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
		return a*Math.pow(2,-10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )*.5 + c + b;
	},
	easeInBack: function (x, t, b, c, d, s) {
		if (s == undefined) s = 1.70158;
		return c*(t/=d)*t*((s+1)*t - s) + b;
	},
	easeOutBack: function (x, t, b, c, d, s) {
		if (s == undefined) s = 1.70158;
		return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
	},
	easeInOutBack: function (x, t, b, c, d, s) {
		if (s == undefined) s = 1.70158; 
		if ((t/=d/2) < 1) return c/2*(t*t*(((s*=(1.525))+1)*t - s)) + b;
		return c/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2) + b;
	},
	easeInBounce: function (x, t, b, c, d) {
		return c - jQuery.easing.easeOutBounce (x, d-t, 0, c, d) + b;
	},
	easeOutBounce: function (x, t, b, c, d) {
		if ((t/=d) < (1/2.75)) {
			return c*(7.5625*t*t) + b;
		} else if (t < (2/2.75)) {
			return c*(7.5625*(t-=(1.5/2.75))*t + .75) + b;
		} else if (t < (2.5/2.75)) {
			return c*(7.5625*(t-=(2.25/2.75))*t + .9375) + b;
		} else {
			return c*(7.5625*(t-=(2.625/2.75))*t + .984375) + b;
		}
	},
	easeInOutBounce: function (x, t, b, c, d) {
		if (t < d/2) return jQuery.easing.easeInBounce (x, t*2, 0, c, d) * .5 + b;
		return jQuery.easing.easeOutBounce (x, t*2-d, 0, c, d) * .5 + c*.5 + b;
	}
});



 
 
(function($){
    $.fn.animaDrag = function(o, callback) {
        var defaults = {
            speed: 400,
            interval: 120,
            easing: null,
            cursor: 'move',
            boundary: document.body,
            grip: null,
            overlay: false,
            after: function(e) {},
            during: function(e) {},
            before: function(e) {},
            afterEachAnimation: function(e) {}
        }
        if(typeof callback == 'function') {
            defaults.after = callback;
        }
        o = $.extend(defaults, o || {});
        return this.each(function() {
            var id, startX, startY, draggableStartX, draggableStartY, dragging = false, Ev, draggable = this,
            grip = $(this);
            if(o.boundary) {
		
				var wD=$(this).css('width');
                var lT = $(o.boundary).offset().top;
				var lL = $(o.boundary).offset().left;
                var limitTop = 0, limitLeft = 0,
                limitBottom = limitTop + $(o.boundary).innerHeight(), limitRight = limitLeft + $(o.boundary).innerWidth();
            }
            grip.mousedown(function(e) {
                o.before.call(draggable, e);

                var lastX, lastY;
                dragging = true;

                Ev = e;

                startX = lastX = e.pageX;
                startY = lastY = e.pageY;
                draggableStartX = $(draggable).offset().left;
                draggableStartY = $(draggable).offset().top;

                $(draggable).css({
                    cursor: o.cursor,
                    zIndex: '1010'
                }).addClass('anima-drag');
                if(o.overlay && $('#anima-drag-overlay').length == 0) {
                    $('<div id="anima-drag-overlay"></div>').css({
                        position: 'absolute',
                        top: '0',
                        left: '0',
                        zIndex: '1000',
                        width: $(document.body).outerWidth() + 'px',
                        height: $(document.body).outerHeight() + 'px'
                    }).appendTo(document.body);
                }
                else if(o.overlay) {
                    $('#anima-drag-overlay').show();
                }
                id = setInterval(function() {
                    if(lastX != Ev.pageX || lastY != Ev.pageY) {
                        var positionX = draggableStartX - (startX - Ev.pageX)-lL, positionY = draggableStartY - (startY - Ev.pageY)-lT;
						
						
						
                        if(positionX < limitLeft && o.boundary) {
                            positionX = limitLeft;
                        }
                        else if(positionX + $(draggable).innerWidth() > limitRight && o.boundary) {
                            positionX = limitRight -wD;
                        }
						
                        if(positionY < limitTop && o.boundary) {
                            positionY = limitTop;
                        }
                        else if(positionY + $(draggable).innerHeight() > limitBottom && o.boundary) {
                            positionY = limitBottom - $(draggable).outerHeight();
                        }
						console.log("value of %s is %d.", "positionX", positionX);
                        $(draggable).stop().animate({
                            left: positionX + 'px',
                            top: positionY + 'px'
                        }, o.speed, o.easing, function(){o.afterEachAnimation.call(draggable, Ev)});
                    }
                    lastX = Ev.pageX;
                    lastY = Ev.pageY;
                }, o.interval);
                ($.browser.safari || e.preventDefault());
            });
			
            $(document).mousemove(function(e) {
                if(dragging) {
                    Ev = e;
                    o.during.call(draggable, e);
                }
            });
			
            $(document).mouseup(function(e) {
                if(dragging) {
                  /*   $(draggable).css({
                        cursor: '',
                        zIndex: '990'
                    }).removeClass('anima-drag'); */
                    
                    clearInterval(id);
                    o.after.call(draggable, e);
                    dragging = false;
                }
            });
        });
    }
})(jQuery);