	force: function(velx, vely){				this.position.x = this.element.getStyle('left').toInt();		this.position.y = this.element.getStyle('top').toInt();				this.velocity.x += velx;		this.velocity.y += vely;	},
9299	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/9299/43648750edbb2c0135f6a7fbe0054e0dc076cd57/Physics.js/buggy/Misc/Physics.js