subbotao02 = new Image();
subbotao02.src = "img/submenu_petsco_r2_c1.jpg";
subbotao02on = new Image();
subbotao02on.src = "img/submenuboldoff_petsco_r2_c1.jpg";


subbotao03 = new Image();
subbotao03.src = "img/submenu_petsco_r3_c1.jpg";
subbotao03on = new Image();
subbotao03on.src = "img/submenuboldoff_petsco_r3_c1.jpg";

subbotao04 = new Image();
subbotao04.src = "img/submenu_petsco_r4_c1.jpg";
subbotao04on = new Image();
subbotao04on.src = "img/submenuboldoff_petsco_r4_c1.jpg";

subbotao05 = new Image();
subbotao05.src = "img/submenu_petsco_r5_c1.jpg";
subbotao05on = new Image();
subbotao05on.src = "img/submenuboldoff_petsco_r5_c1.jpg";

subbotao06 = new Image();
subbotao06.src = "img/submenu_petsco_r6_c1.jpg";
subbotao06on = new Image();
subbotao06on.src = "img/submenuboldoff_petsco_r6_c1.jpg";



function sub_imon(name)   {
        document[name].src = eval(name + "on.src");
}

function sub_imoff(name)  {
      document[name].src = eval(name + ".src");
}

function sub_imboldon(name,img)   {
        document[name].src ="img/" + img;
}

function imoboldoff(name,img)  {
        document[name].src ="img/" + img;
}