=this.top+"px"):(t.style.left=Math.round(this.left)+"px",t.style.top=Math.round(this.top)+"px")),this},positionRelative:function(t,e){var n=i.SIDE;return n.LEFT&e&&(this.right=t.left),n.RIGHT&e&&(this.left=t.right),n.TOP&e&&(this.bottom=t.top),n.BOTTOM&e&&(this.top=t.bottom),n.CENTER&e&&(this.center=t.center),n.VCENTER&e&&(this.vcenter=t.vcenter),this},subtract:function(t){this.x-=t.x,this.y-=t.y},flipV:function(){this.y=-this.y},flipH:function(){this.x=-this.x},alignRelative:function(t,e){var n=i.SIDE;retu