var descs = ['item1','item2','item3','item4','item5','item9','item10','item11','item13', 'platdesc', 'golddesc'];
var effects = [];

function init_descs () {
	
	descs.forEach(function(desc){
	   effects[desc] = new Fx.Slide(desc, {duration: 600});
	   effects[desc].hide();
	   $(desc).setStyle('display', 'block');
	});
}

womAdd('init_descs()');

function toggleDesc (id) {
	effects[id].toggle() //toggle the slider up and down.
}