window.addEvent('domready', function() {
	var sw = $$('a.alternar');
	var tamSw = sw.length;

	for (var i = 0; i < tamSw; i++) {
		sw[i].onclick = function() {
			var high = $('high_'+this.id).style;
			var cop = $('cop_'+this.id).style;
			
			high.display = (high.display == "none" ? "block" : "none");
			cop.display = (cop.display == "" || cop.display == "none" ? "block" : "none");
			
			return false;
		}
	}
});