How to clear all fields text in form when press F5 in asp.net mvc4

@using (Html.BeginForm("Upload", "Upload", FormMethod.Post, new { enctype = "multipart/form-data" })) {
    @Html.ValidationSummary(true)

    <fieldset>
        <legend>program</legend>

        <div class="editor-label">
            Programe Name :
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.prog_name)
            @Html.ValidationMessageFor(model => model.prog_name) <span style="color: red">*</span>
            <span style="color: red">@ViewBag.name</span>
        </div>

        <div class="editor-label">
            Version Number :
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.ver_number)
            @Html.ValidationMessageFor(model => model.ver_number) <span style="color: red">*</span>
            <span style="color: red">@ViewBag.ver</span>
        </div>
<p>
            <input type="submit" value="Upload"/>
        </p>
    </fieldset>
}	

this.ModelState.Clear();