function changePic(datacenter, index)
{
	var id = datacenter + 'pic';
	var img = $(id);
	var src = img.src;
	var newsrc = '';
	var ahref1 = '';
	var ahref2 = '';
	if (/pic1\.jpg$/i.test(src))
	{
		newsrc = '/img/datacenter/' + datacenter + '/pic2.jpg';
		ahref1 = '/img/datacenter/' + datacenter + '/pic2big.jpg';
		ahref2 = '/img/datacenter/' + datacenter + '/pic1big.jpg';
	}
	else
	{
		newsrc = '/img/datacenter/' + datacenter + '/pic1.jpg';
		ahref1 = '/img/datacenter/' + datacenter + '/pic1big.jpg';
		ahref2 = '/img/datacenter/' + datacenter + '/pic2big.jpg';
	}
	
	img.src = newsrc;
	$(datacenter + 'bigpic1').setAttribute('href',ahref1);
	$(datacenter + 'bigpic2').setAttribute('href',ahref2);
}