function Search() {

  form = document.getElementById("frm_search");
  if (form.edt_search_keyword.value == "") {
    alert('Please enter search text');
    form.edt_search_keyword.focus();
    return false;
  } else return true;
  
}

function addBookmark(url, title) {
 if (!url) url = location.href;
 if (!title) title = document.title;

 //Gecko
 if ((typeof window.sidebar == "object") && (typeof window.sidebar.addPanel == "function")) window.sidebar.addPanel (title, url, "");
 //IE4+
 else if (typeof window.external == "object") window.external.AddFavorite(url, title);
 //Opera7+
 else if (window.opera && document.createElement)
 {
 var a = document.createElement('A');
 if (!a) return false; //IF Opera 6
 a.setAttribute('rel','sidebar');
 a.setAttribute('href',url);
 a.setAttribute('title',title);
 a.click();
 }
 else return false;

 return true;
}