function trim(string) {
    return string.replace(/(^\s+)|(\s+$)/g, "");
}

function Search(submit, section) {
    form = document.getElementById("search_form");

    if (form.search_key.value == '') {
        alert('Please enter search text');
        form.search_key.focus();
        if (submit) {
            return false;
        }
    } else {
        if (section == 'product') {
            expression = trim(form.search_key.value.toLowerCase()).replace(/(\s+)/g, '+');
            form.action = '/software.html?key=' + expression;
            form.submit();
        } else {
            if (section == 'press_release') {
                expression = trim(form.search_key.value.toLowerCase()).replace(/(\s+)/g, '+');
                document.location = '/' + section + '/search.html?search_key=' + expression + '&p=1';
            } else {
                document.location = '/' + section + '/search.html?search_key=' + form.search_key.value;
            }
            if (submit) {
                return false;
            }
        }
    }
}

function Filter(section) {
  var theform, keywords;
  if (window.navigator.appName.toLowerCase().indexOf("netscape") > -1) {
    theform = document.forms["filter_form"];
  } else {
    theform = document.filter_form;
  }
  if (theform.search_val.value == '' || theform.search_field.value == '') {
    alert('Please enter search text and select search filed');
    theform.search_val.focus();
  } else {
    document.location = '/admin/' + section + '/search.html' + 
        '?search_field=' + theform.search_field.value + '&search_val=' + theform.search_val.value;
  }
  return false;
};