user registration at FORUMHOME

[Harmachis]

hello,
i tried to add a mini User Registration field at my FORUMHOME, so that new users dont need to click on Register button. they can register simply from the index page.

i used this code:

<table cellpadding="0" cellspacing="0" border="0" width="100%" align="center">

<tr>
<td class="alt1" align="left">
<span class="smallfont"><script type="text/javascript" src="$vboptions[bburl]/clientscript/vbulletin_md5.js"></script>
<script type="text/javascript" src="clientscript/vbulletin_md5.js?v=$vboptions[simpleversion]"></script>
<script type="text/javascript">
function verify_passwords(password1, password2)
{
	// do various checks, this will save people noticing mistakes on next page
	if (password1.value == '' || password2.value == '')
	{
		alert('$vbphrase[fill_out_both_password_fields]');
		return false;
	}
	else if (password1.value != password2.value)
	{
		alert('$vbphrase[entered_passwords_do_not_match]');
		return false;
	}
	else
	{
		<if condition="$show['coppa']">
		pass_copy = password1.value;
		passconfirm_copy = password2.value;
		</if>

		var junk_output;

		md5hash(password1, document.forms.register.password_md5, junk_output, $show[nopasswordempty]);
		md5hash(password2, document.forms.register.passwordconfirm_md5, junk_output, $show[nopasswordempty]);

		<if condition="$show['coppa']">
		document.forms.register.password.value = pass_copy;
		document.forms.register.passwordconfirm.value = passconfirm_copy;
		</if>

		return true;
	}
	return false;
}
</script>

<form action="register.php?do=addmember" name="register" method="post" onsubmit="return verify_passwords(password, passwordconfirm);">
<input type="hidden" name="s" value="$session[sessionhash]" />
<input type="hidden" name="securitytoken" value="$bbuserinfo[securitytoken]" />
<input type="hidden" name="do" value="addmember" />
<input type="hidden" name="url" value="$url" />
<input type="hidden" name="agree" value="$agree" />
<input type="hidden" name="password_md5" />
<input type="hidden" name="passwordconfirm_md5" />

     User name:
     <input type="text" class="bginput" name="username" maxlength="$vboptions[maxuserlength]" style="width:70px" /><br />
     Password:
     <input type="password" class="bginput" name="password" size="25" maxlength="50" style="width:70px" /><br />
     Confirm password:
     <input type="password" class="bginput" name="passwordconfirm" size="25" maxlength="50" style="width:70px" /><br />
     Email:
     <input type="text" class="bginput" name="email" size="25" maxlength="50" dir="ltr" style="width:70px" /><br />
     Confirm email:
     <input type="text" class="bginput" name="emailconfirm" size="25" maxlength="50" dir="ltr" style="width:70px" /><br />

$human_verify <br />

<input type="submit" class="button" value="Submit" accesskey="s" />&nbsp;
<input name="agree" id="cb_rules_agree" value="1" type="checkbox"><strong>Agree?</strong>&nbsp;     
</form>
</span></td>
</tr>
</table>

the code: $human_verify its not working
at the output it shows $human_verify instead of showing random question (i choose random question for human varifiction)

whats the problem?

can anyone help me plz