var current = 'img1';

function rollover(img1_name, img2_name, img2_src) {
	document[current].style.opacity = 1;
	document[current].style.filter = 'alpha(opacity=' + 100 + ')';
	document[img2_name].src = img2_src;
	document[img1_name].style.opacity = .6;
	document[img1_name].style.filter = 'alpha(opacity=' + 60 + ')';
	current = img1_name;
}

function rollover2(img_src) {
	document['profile'].src = img_src;
}