var initial = 0;

var last = initial;
var index = $$('#index li');
var podcasts = $$('.entry');
podcasts[0].addClass('active');
index[0].addClass('active');


for (var p = 0; p <podcasts.length; p++) {
	index[p].setProperty('id', p);
	
index[p].addEvent('click', swap);

}

function swap(){
	if(this.id != last){
	podcasts[last].removeClass('active');
	podcasts[this.id].addClass('active');
	index[last].removeClass('active');
	index[this.id].addClass('active');
	last = this.id;
}
}