botao1up = new Image; botao1up.src = "btn-oque.jpg";
botao1down = new Image; botao1down.src = "btp-oque.jpg";
botao2up = new Image; botao2up.src = "btn-obj.jpg";
botao2down = new Image; botao2down.src = "btp-obj.jpg";
botao3up = new Image; botao3up.src = "btn-pers.jpg";
botao3down = new Image; botao3down.src = "btp-pers.jpg";
botao4up = new Image; botao4up.src = "btn-hist.jpg";
botao4down = new Image; botao4down.src = "btp-hist.jpg";
botao5up = new Image; botao5up.src = "btn-1999.jpg";
botao5down = new Image; botao5down.src = "btp-1999.jpg";
botao6up = new Image; botao6up.src = "btn-2001.jpg";
botao6down = new Image; botao6down.src = "btp-2001.jpg";

function MouseOverRoutine(botaoName)
{
   if (botaoName=="botao1") {document.botao1.src = botao1down.src;}
   if (botaoName=="botao2") {document.botao2.src = botao2down.src;}
   if (botaoName=="botao3") {document.botao3.src = botao3down.src;}
   if (botaoName=="botao4") {document.botao4.src = botao4down.src;}
   if (botaoName=="botao5") {document.botao5.src = botao5down.src;}
   if (botaoName=="botao6") {document.botao6.src = botao6down.src;}
}

function MouseOutRoutine(botaoName)
{
   if (botaoName=="botao1") {document.botao1.src = botao1up.src;}
   if (botaoName=="botao2") {document.botao2.src = botao2up.src;}
   if (botaoName=="botao3") {document.botao3.src = botao3up.src;}
   if (botaoName=="botao4") {document.botao4.src = botao4up.src;}
   if (botaoName=="botao5") {document.botao5.src = botao5up.src;}
   if (botaoName=="botao6") {document.botao6.src = botao6up.src;}
}


function mostrafoto(imagem) { 
foto = imagem + '.jpg';
SmallWin=window.open(foto,"SmallWin","toolbar=no,directories=no,status=no,scrollbars=no,menubar=no,width=470,height=330"); 
SmallWin.window.focus() }