Cadastro.cshtml

@section estilo {
    <link href="@Url.Content("~/Scripts/uploadify/uploadify.css")" rel="stylesheet" type="text/css" />
    <link href="@Url.Content("~/Content/themes/smoothness/jquery-ui.css")" rel="stylesheet" type="text/css" />
    <link href="@Url.Content("~/Content/jquery.Jcrop.css")" rel="stylesheet" type="text/css" />
}
@section scripts {
    @JavaScriptHelper.CadastroDeCurso() @* Isto não deveria estar aqui *@
}
@using (Html.BeginForm("Cadastrar", "Curso", FormMethod.Post, new { id = "frmCadastro", enctype = "multipart/form-data" }))
{
    @Html.ValidationSummary(true)
    @Html.Partial("_Salvar") @* Deveria estar dentro da partial _Salvar.cshtml *@
}