function bookmarksite(title, url){
if (document.all)
window.external.AddFavorite(url, title);
else if (window.sidebar)
window.sidebar.addPanel(title, url, "")
}


function OpenTermos(url) {

   var w = 615, h = 400;
   var width = 615, height = 400;

   w = window.screen.availWidth;
   h = window.screen.availHeight;

   var leftPos = (w-width)/2, topPos = (h-height)/2;

   var NewWindows = window.open(url,'Termos','scrollbars=1,width=' + width + ',height=' + height + ',top=' + topPos + ',left=' + leftPos);
   NewWindows.focus();

}

<!-- Java para checar campos -->
     function camposCadBusca() {

              with (document.form_buscar) {

                  if (chave.value == "")  {
                      alert('Nescessário uma palavra-chave para realizar a busca.');
                      chave.focus();
                      chave.select();
                      return false;
                  }
				  
				 document.form_buscar.action = "busca.php";
                 document.form_buscar.submit();

 

              }
        }
<!-- Fecha checar campos -->