$('#hoge').haneru('+=200', '+=100', 100, 500)

jquery.haneru.js

$.fn.haneru = function (x, y, takasa, duration) {
	var self = this;
	return  self.queue(function () {
		var offset = self.offset();
		var step = function (now, fx) {
			if (fx.prop !== 'y') return;
			self.css({
				left:fx.elem.x,
				top:fx.elem.y - Math.sin(Math.PI * fx.pos) * takasa
			});
		};
		$({
			x:offset.left - parseInt(self.css('margin-left')),
			y:offset.top - parseInt(self.css('margin-top'))
		})
			.animate({ x:x, y:y }, {
				duration:duration,
				easing:'linear',
				complete:$.proxy(self, 'dequeue'),
				step:step
			});
	});
};