function changeImg(iId){
	sHolder = document.getElementById('imgHolder');
	iImg = iId + 'B.jpg';
	sHolder.src = 'images/portfolio/' + iImg;
}

function changeTimg(iId){
	sHolder = document.getElementById('imgHolder');
	iImg = iId + '.gif';
	sHolder.src = 'images/tests/' + iImg;
}