$(document).ready(function(){$('.frm_submit').submit(function(){var okeywords=$(this).find('input[name="txt_keywords"]');var skeywords=okeywords.val();if(skeywords==""){alert("温馨提示:\n\n请输入要搜索的关键词...");okeywords.focus();}else{ window.location=root+"about/index.php?/k-"+escape(skeywords)+"/";};return false;});});