function growClen(clen,img){
  if(document.getElementById(clen).style.height == 'auto'){
    document.getElementById(clen).style.height = '115px';
    img.src= 'http://www.zacler.eu/wepp/templates/images/grow_ico.jpg';
  }
  else{
    document.getElementById(clen).style.height = 'auto';
    img.src= 'http://www.zacler.eu/wepp/templates/images/grow_down_ico.jpg';
  }
}

function hideClen(clen){
  document.getElementById(clen).style.height = '115px';
}