input type=text id=username name=username class=inputBox value=请输入身份证号 onFocus=if value =='请输入身份证号'value ='' onBlur=if value ==''value='请输入身份证号' title=请输入身份证号 div div

The code you provided is HTML code for a login form. It includes input fields for username, password, and captcha, as well as a submit button. The input fields have placeholder values and JavaScript functions for handling focus and blur events. The captcha image is generated by a server-side script.