separare le due funzioni? così
codice:
 
function do_it1(){ 
info = get_data(document.SuzyForm.PicTitle2.value); 
document.SuzyForm.PicTitle2.value = document.SuzyForm.PicTitle2.value+".jpg"; 
document.SuzyForm.PodParent.value = info.mother+".jpg"; 
document.SuzyForm.PollenParent.value = info.father+".jpg"; 
}
function do_it2(){
info = get_data(document.SuzyForm.PicTitle3.value); 
document.SuzyForm.PicTitle3.value = document.SuzyForm.PicTitle3.value+".jpg"; 
document.SuzyForm.PodParent1.value = info.mother+".jpg"; 
document.SuzyForm.PollenParent1.value = info.father+".jpg"; 
}
sennò prova a mettere un alert per capire cosa non va