function buildSearchQuery(form) {

  switch (form.engines.options.selectedIndex)
    {
    case 0:
         form.action = '/parlweb/result_test.jsp';
		 form.target = '_blank';
		 form.elements[0].name = 'keyword';
		 break;
    case 1:
		 form.action = 'http://www.google.com.sg/search';
		 form.target = '_blank';
		 form.elements[0].name = 'q';
		 break;
    case 2:
		 form.action = 'http://search.yahoo.com/bin/query';
		 form.target = '_blank';
		 form.elements[0].name = 'p';
		 break;
	case 3:
		 form.action = 'http://search.lycos.com/default.asp?lpv=1&loc=searchhp&tab=web&';
		 form.target = '_blank';
		 form.elements[0].name = 'query';
		 break;
	case 4:
		 form.action = 'http://web.ask.com/web';
		 form.target = '_blank';
		 form.elements[0].name = 'q';
		 break;
    default:
         break;
    }

  
  return true;
}