$(document).ready(function () {
    $("#_btnBusca").click(function () {
        var criterio = $("#_txtBusca").val();

        if (criterio.lenght < 3) {
            alert("Por favor, informe ao menos 3 caracteres para a pesquisa.");
            $("#_txtBusca").focus();
            return;
        }

        if (criterio == "") {
            alert("Por favor, informe ao menos 3 caracteres para a pesquisa.");
            $("#_txtBusca").focus();
            return;
        }

        window.location = "/Paginas/Pesquisa.aspx?t=" + criterio;


    });
});

function getParameterByName(name) {
    name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
    var regexS = "[\\?&]" + name + "=([^&#]*)";
    var regex = new RegExp(regexS);
    var results = regex.exec(window.location.href);
    if (results == null)
        return "";
    else
        return decodeURIComponent(results[1].replace(/\+/g, " "));
}