function clearDefault(el) {
  if (el.defaultValue==el.value) el.value = ""
}

function AbrirPopup(url,titulo,parametros) {
    window.open(url,titulo,parametros);
}
function getStyle(el,styleProp) {
    var x = document.getElementById(el);
    if (x.currentStyle)
        var y = x.currentStyle[styleProp];
    else if (window.getComputedStyle)
        var y = document.defaultView.getComputedStyle(x,null).getPropertyValue(styleProp);
    return y;
}

function aumentarFonte() {
    var increment = 0.3;
    var el = "TextoNota";
    var x = document.getElementById(el);
    alert(x.style.fontSize);
    var styleProp = "font-size";
    var result;
    if (navigator.appName == "Microsoft Internet Explorer" && styleProp == "font-size") {
        styleProp = "fontSize";
        result = getStyle(el,styleProp);
    } else {
        result = getStyle(el,styleProp);
    }
    var result = getStyle(el,styleProp);
    var sizeOfBaseFont = result.substring(0,result.length-2);
    alert(sizeOfBaseFont);
    sizeOfBaseFont = eval("("+sizeOfBaseFont+"/12)" + " + " + increment);
    alert(sizeOfBaseFont);
    document.getElementById(el).style.fontSize = sizeOfBaseFont+"em";
}

function diminuirFonte() {
    var increment = 0.3;
    var el = "TextoNota";
    var styleProp = "font-size";
    if (navigator.appName == "Microsoft Internet Explorer" && styleProp == "font-size") {
        styleProp = "fontSize";
    }
    var result = getStyle(el,styleProp);
    var sizeOfBaseFont = result.substring(0,result.length-2);
    sizeOfBaseFont = eval("("+sizeOfBaseFont+"/12)" + " - "+ increment);
    document.getElementById(el).style.fontSize = sizeOfBaseFont+"em";
}
function tamanhoPadrao() {
    var el = "TextoNota";
    document.getElementById(el).style.fontSize = "1em";
}

function validar_form_contato(formulario) {
    var msg = "";
    if (formulario.nome.value=="") {
        msg += "Please fill out the 'Name' field.\n"
    }
    if (formulario.email.value=="") {
        msg += "Please fill out the 'Email' field.\n"
    } else {
        var reEmail = /^[\w-]+(\.[\w-]+)*@(([\w-]{2,63}\.)+[A-Za-z]{2,6}|\[\d{1,3}(\.\d{1,3}){3}\])$/;
        if (!reEmail.test(formulario.email.value)) {
            msg += formulario.email.value+"' is not a valid 'Email'.\n";
        }
    }
    if (formulario.assunto.value=="") {
        msg += "Please fill out the 'Subject' field.\n"
    }
    if (formulario.mensagem.value=="") {
        msg += "Please fill out the 'Message' field'.\n"
    }
    if (msg) {
        alert(msg);
        return false;
    } else {
        return true
    }
}

function validar_form_email(formulario) {
    var msg = "";
    if (formulario.email_amigo.value=="") {
        msg += "Please fill out the 'Recipient email' field.\n"
    } else {
        var reEmail = /^[\w-]+(\.[\w-]+)*@(([\w-]{2,63}\.)+[A-Za-z]{2,6}|\[\d{1,3}(\.\d{1,3}){3}\])$/;
        if (!reEmail.test(formulario.email_amigo.value)) {
            msg += formulario.email_amigo.value+" is not a valid 'Recipient email'.\n";
        }
    }
    if (formulario.seu_email.value=="") {
        msg += "Please fill out the 'Your email' field.\n"
    } else {
        var reEmail = /^[\w-]+(\.[\w-]+)*@(([\w-]{2,63}\.)+[A-Za-z]{2,6}|\[\d{1,3}(\.\d{1,3}){3}\])$/;
        if (!reEmail.test(formulario.seu_email.value)) {
            msg += formulario.seu_email.value+" is not a valid 'Your email'.\n";
        }
    }
    if (msg) {
        alert(msg);
        return false;
    } else {
        return true
    }
}

function ir_para(pagina) {
    var formulario = document.FormPaginacao;
    formulario.pagina.value = pagina;
    formulario.submit();
}

function show(id) {
    $(".visivel").hide();
	$(".visivel").removeClass("visivel");
    $("#Pagina"+id).show("fast");
	$("#Pagina"+id).addClass("visivel");
    $(".ativo").removeClass("ativo");
    $("#LinkPagina"+id).addClass("ativo");
}

function valor_default(el, valor) {
    if (el.value == "" ) {
        el.value = valor;
    }
}


function initMenu() {
    $('#MenuNotas li a').click(
        function() {
            var checkElement = $(this).next();
            if((checkElement.is('ul')) && (checkElement.is(':visible'))) {
                return false;
            }
            if((checkElement.is('ul')) && (!checkElement.is(':visible'))) {
                $(".ativo").removeClass("ativo");
                $(this).addClass("ativo");
                $('#MenuNotas ul:visible').slideUp('normal');
                checkElement.slideDown('normal');
                return false;
            }
    });
}