function blockOver(blockid) {
  var element = $('block'+blockid);
  element.setStyle('background','url(images/bg_block'+blockid+'.jpg) #fff no-repeat left top');
  element.getChildren('.title').setStyle('color','#fff');
  $('photo'+blockid).setProperty('src','images/foto'+blockid+'-2.jpg');
}

function blockOut(blockid) {
  var element = $('block'+blockid);
  element.setStyle('background','url(images/bg_block4.jpg) #fff no-repeat left top');
  element.getChildren('.title').setStyle('color','#A4ABB3');
  $('photo'+blockid).setProperty('src','images/foto'+blockid+'-1.jpg');
}