function on1() 
{if (!document.images) return; document.a.src = "images/butt_home_sel.gif";} 
function on2() 
{if (!document.images) return; document.b.src = "images/butt_company_sel.gif";}
function on3() 
{if (!document.images) return; document.c.src = "images/butt_products_sel.gif";}
function on4() 
{if (!document.images) return; document.d.src = "images/butt_services_sel.gif";}
function on5() 
{if (!document.images) return; document.e.src = "images/butt_contact_sel.gif";}
function on6() 
{if (!document.images) return; document.f.src = "images/historico_sel.gif";}
function on7() 
{if (!document.images) return; document.g.src = "images/princ_sel.gif";}
function on8() 
{if (!document.images) return; document.h.src = "images/lat_sel.gif";}
function on9() 
{if (!document.images) return; document.i.src = "images/sucos_sel.gif";}
function on10() 
{if (!document.images) return; document.j.src = "images/refri_sel.gif";}
function on11() 
{if (!document.images) return; document.k.src = "images/aliment_sel.gif";}
function on12() 
{if (!document.images) return; document.l.src = "images/quimica_sel.gif";}
function on13() 
{if (!document.images) return; document.m.src = "images/proj_sel.gif";}
function on14() 
{if (!document.images) return; document.n.src = "images/contato_sel.gif";}
function on15() 
{if (!document.images) return; document.o.src = "images/fone_sel.gif";}
function on16() 
{if (!document.images) return; document.p.src = "images/email_sel.gif";}
function on17() 
{if (!document.images) return; document.q.src = "images/down_sel.gif";}
function on18()
{if (!document.images) return; document.r.src = "images/bt_localiza.gif";}

function off1() 
{if (!document.images) return; document.a.src = "images/butt_home.gif";}
function off2() 
{if (!document.images) return; document.b.src = "images/butt_company.gif";}
function off3() 
{if (!document.images) return; document.c.src = "images/butt_products.gif";}
function off4() 
{if (!document.images) return; document.d.src = "images/butt_services.gif";}
function off5() 
{if (!document.images) return; document.e.src = "images/butt_contact.gif";}
function off6() 
{if (!document.images) return; document.f.src = "images/historico.gif";}
function off7() 
{if (!document.images) return; document.g.src = "images/principios.gif";}
function off8() 
{if (!document.images) return; document.h.src = "images/lat.gif";}
function off9() 
{if (!document.images) return; document.i.src = "images/sucos.gif";}
function off10() 
{if (!document.images) return; document.j.src = "images/REFRI.gif";}
function off11() 
{if (!document.images) return; document.k.src = "images/aliment.gif";}
function off12() 
{if (!document.images) return; document.l.src = "images/quimica.gif";}
function off13() 
{if (!document.images) return; document.m.src = "images/proj.gif";}
function off14() 
{if (!document.images) return; document.n.src = "images/contato_bt.gif";}
function off15() 
{if (!document.images) return; document.o.src = "images/fone_bt.gif";}
function off16() 
{if (!document.images) return; document.p.src = "images/email_bt.gif";}
function off17() 
{if (!document.images) return; document.q.src = "images/down.gif";}
function off18()
{if (!document.images) return; document.r.src = "images/bt_localiza_sel.gif";}

var imgslist = new Array(
"images/butt_home_sel.gif",
"images/butt_company_sel.gif",
"images/butt_products_sel.gif",
"images/butt_services_sel.gif",
"images/butt_contact_sel.gif",
"images/historico_sel.gif",
"images/lat.gif_sel",
"images/sucos_sel.gif",
"images/aliment_sel.gif",
"images/refri_sel.gif",
"images/quimica_sel.gif",
"images/proj_sel.gif",
"images/contato_sel.gif",
"images/fone_sel.gif",
"images/email_sel.gif",
"images/princ_sel.gif",
"images/bt_localiza_sel.gif")

var imgs=new Array(); 
for (x=0; x<imgslist.length; x++) 
 if (document.images) 
  {imgs[x]=new Image(); imgs[x].src = imgslist[x];}