function $(id)
            {
                return document.getElementById(id);
            }
            function mudaFonte(id, opt)
            {
                var ValorAtual = $(id).style.fontSize;
                var valor = ValorAtual.replace("px", "");
                valor = parseInt(valor, 10);
                 if(opt == 'aumentar')
                {
                    var total = valor + 1;
                }
                else if(opt == 'diminuir')
                {
                    var total = valor - 1;
                }
                total = total + "px";
                $(id).style.fontSize = total;
            } 

/* xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx*/
function link(end){ 
  window.open(end,"nova","height=403,width=450,left=240,top=200"); 
}/*Janela*/