替换搜索结果中的关键字为高亮显示

  php函数
function highLight($str, $keywords, $color = "red") {
    if (empty($keywords)) {
        return $str;
    }
    $keywords = split("[ \t\r\n,]+", $keywords);
    foreach($keywords as $val) {
        $tvar = eregi($val, $str, $regs);
        $finalrep    = "" . $regs[0] . "";
    }
    $str = str_ireplace($regs[0], $finalrep, $str);
    return $str;
  }
js函数
function highLight(str,key,color){
  keyE=key.replace(/\\/g,"\\\\").replace(/\//g,"\\/").replace(/\"/g,"\\\"").replace(/\'/g,"\\\'").replace(/\r/g,"\\r").replace(/\n/g,"\\n");
  return(str.replace(eval("\/(>.*)"+keyE+"(.*华北院召开2004年三季度工作总结会议";
document.write(highLight(strS,"2004","red"));