//input btn, schimba starea cand trece cu mausu peste
function mouse_over(obj,nr){
    obj_src=obj.src;
    new_src=obj_src.replace("norm","over");
    obj.src=new_src;
}

//input btn, schimba starea cand trece cu mausu peste
function mouse_out(obj,nr){
    obj_src=obj.src;
    new_src=obj_src.replace("over","norm");
    obj.src=new_src;
}