function ShowPage(Page) {
  var PageUrl = window.document.URL.toString();
  if (PageUrl.indexOf("?") > 0) {
    var NewUrl = "";
    var ArgUrl = PageUrl.split("?")[1].split("&");
    for (i = 0; i < ArgUrl.length; i++){
      if (ArgUrl[i].indexOf("Page") < 0) {
        if (NewUrl == "") {
          NewUrl = "?" + ArgUrl[i];
        } else {
          NewUrl += "&" + ArgUrl[i];
        }
      }
    }
    NewUrl += "&Page=" + Page;
  } else {
    var NewUrl = "";
  }
  window.location = NewUrl;
}