function changeImg(size, image)
{
	if(size == 'large')
	{
		document.getElementById('btnImgMd').src = '/images/btn-medium-img2-off.png'
		document.getElementById('btnImgLg').src = '/images/btn-large-img2-on.png'
		document.getElementById('prodImg').src = '/images/products/'+image
	}
	else if(size == 'medium')
	{
		document.getElementById('btnImgMd').src = '/images/btn-medium-img2-on.png'
		document.getElementById('btnImgLg').src = '/images/btn-large-img2-off.png'
		document.getElementById('prodImg').src = '/images/products/'+image
	}
}