function janela(nomelink,nomejanela,tamanho)
{
   var desktop = window.open(nomelink,nomejanela,"toolbar=no,location=no,status=no,menubar=no,scrollbars=yes,top=50,left=100,resizable=yes,"+tamanho);
   }


function janela2(theURL,winName) { //v2.0
  window.open(theURL,winName,'scrollbars=yes,width='+screen.width+',height='+screen.height+',top=0, left=0');
}

function fecha_janela() {
window.close();
}