Validation Errors

[RCWong]

Keep getting these four errors, that I can't seem to fix.

there is no attribute "onSubmit" .
?php?do=login" method="post" onSubmit="md5hash..

there is no attribute "onFocus" .

?ndex="101" value="User Name" onFocus="if

there is no attribute "onClick" .
?le="float:right" href="#top" onClick="

there is no attribute "onChange" .
<select name="styleid" onChange="switch

        <!-- login form -->
 <form action="login.php?do=login" method="post" onSubmit="md5hash(vb_login_password, vb_login_md5password, vb_login_md5password_utf, 0)">
        <script type="text/javascript" src="clientscript/vbulletin_md5.js?v=370rc1"></script>
        <table cellpadding="0" cellspacing="3" border="0">
        <tr>
            <td class="smallfont"><label for="navbar_username">User Name</label></td>
 <td><input type="text" class="bginput" style="font-size: 11px" name="vb_login_username" id="navbar_username" size="10" accesskey="u" tabindex="101" value="User Name" onFocus="if (this.value == 'User Name') this.value = '';" /></td>
 <td class="smallfont" nowrap="nowrap"><label for="cb_cookieuser_navbar"><input type="checkbox" name="cookieuser" value="1" tabindex="103" id="cb_cookieuser_navbar" accesskey="c" /><img src="" alt="" /></label></td>
        </tr>
        <tr>
            <td class="smallfont"><label for="navbar_password">Password</label></td>
 <td><input type="password" class="bginput" style="font-size: 11px" name="vb_login_password" id="navbar_password" size="10" tabindex="102" /></td>
            <td><div align="center">
 <input type="image" src="" value="Log in" tabindex="104" title="Enter your username and password in the boxes provided to login, or click the 'register' button to create a profile for yourself." accesskey="s" />
              </div></td>
        </tr>
        </table>
        <input type="hidden" name="s" value="7e557ecff6b92b70cee3a3d203e9d290" />
        <input type="hidden" name="do" value="login" />
        <input type="hidden" name="vb_login_md5password" />
        <input type="hidden" name="vb_login_md5password_utf" />
        </form>
        <!-- / login form -->