function mouseOver(felem){
  elem = document.getElementById(felem);
  //alert(elem.src+'=='+'/templates/themes/datapacific/images/home_'+felem+'_off.gif');
  if (elem.src.indexOf('/templates/themes/datapacific/images/home_'+felem+'_off.gif') != -1){
    elem.src = '/templates/themes/datapacific/images/home_'+felem+'_on.gif';
  }else{
    elem.src = '/templates/themes/datapacific/images/home_'+felem+'_off.gif';
  }
  
}