为什么他不能弹出鼠标经过事件的对话框
<!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title> 鼠标经过事件 </title> <script type="text/javascript"> function message(){ confirm("请输入密码后,再单击确定!"); } </script> </head> <body> <form> 密码:<input name="password" type="password" > <input name="确定" type="button" value="确定" onmouseover="massage()"/> </form> </body> </html>