context: 	initialize: function(element, container, options){		this.setOptions(options);		this.element = $(element);		this.container = $(container);				this.velocity = {'x': 0, 'y': 0};				this.position = {};		this.oldPosition = {};		this.oldVelocity = {};		this.position.x = this.oldPosition.x = this.element.getStyle('left').toInt();		this.position.y = this.oldPosition.y = this.element.getStyle('top').toInt();				this.blockers = $$(this.options.blockers);	},
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