var BlindDown = new Class({
		Implements: Options,
		options: {
			duration: 1000,
			link: 'ignore',
		},
		initialize: function(element_id, options){
				this.setOptions(options);
				var Element = $(element_id);
				var HeightOfElement = Element.getSize();
				var BlindDownEffect = new Fx.Morph(element_id, {duration: this.options.duration, link: this.options.link});
					BlindDownEffect.start({
						'visibility': 'visible',
						'overflow': 'hidden',
						'height': ['0xp', HeightOfElement.y]
					});
		}

});
/* called like:
<a href="#" onclick="new BlindDown('rss_feed'); return false;">blind rss_feeds down</a>
error in IE says "'BlindDown' is undefined"
*/