[Plugin: WP-UserLogin Widget] Code question about link

Hello,

I want to make the “Register” button open in a new tab/page by using target="_blank" but I dont know where to put the code… Each time I put this code in the thing it tells me syntax error.

Here is the place I try to put it in:

//Build Submit button, Remember Me box, and links for registations and forgotten password
	$remember = "<label for=\"rememberme\"><input name=\"rememberme\" id=\"rememberme\" type=\"checkbox\" checked=\"checked\" value=\"forever\" /> ".__('Remember Me')."</label><br />
	<input type=\"submit\" name=\"submit\" value=\"".__('Log in')."\" class=\"button\" />
				</form><br />";
	if(get_option('users_can_register')) {
		$register =  "\n<a href=\"". $wp_url ."/wp-login.php?action=register\">".__('Register')."</a>";
	}

	else{
		$register = "";
	}

	$recover = "\n<br /><a href=\"".wp_lostpassword_url( $_SERVER['REQUEST_URI'] )."\">".__('Lost your password?')."</a>";

	$submit = $remember.$register.$recover;