function swapImg(s,e) {
	var d = document;
	if (!d.getElementsByTagName) return;
	
	// Set the active button
	var btns = d.getElementById('SI_portOpts').getElementsByTagName('a');
	for (i=0;i<btns.length; i++) { btns[i].className=''; }
	e.className = 'active';
	e.blur();
	
	// Set the portfolio image
	d.getElementById('SI_PortfolioImg').src = s;
	}