<!--验证码表单-->
<input type="text" name="codestr" id="codestr" size="1" maxlength="4" tabindex="6" onfocus="get_Code_win();this.onfocus=null;" onkeyup="hst_ajaxcheck('checke_dvcode','codestr');" /><span id="imgidwin" style="color:red">点击获取验证码25</span><span id="isok_codestr"></span>