[jQuery] IE7 isn't playing nice with jQuery.next()

[jQuery] IE7 isn't playing nice with jQuery.next()


I'm trying to target the IMG element in this HTML by traversing from
the select input and apply either a show() or hide(). Works
beautifully in FF, but in IE7, I get an error "Object doesn't support
this property or method". Here is the basic code:
[ HTML ]
<select>
<options></options>
</select>
<input />
<img class="trigger" />
[ JS ]
$j('#ctype').change(function(){
if ($j(this).val() == 'P')
this.next('img' + '.trigger').show()
});
Has anybody dealt with this? It's such a simple operation, what's the
problem here?
--Thanks