JQuery :: Each Function Iterate Through Form Inputs

I cant get this each function to work inside a form: For example I have this code:
$('#formid>input').each(function(){
if($(this).attr('id')!='') alert($(this).attr('value'); //fetch id if
not blank ang show value
});

The code inside this function does not run if the form is rendered this way:
<form><div id='tabs" >
<ul>...</ul><div id='tab1">
<input type='text' id='fname' /></div>
</div></form>

But if it is rendered in a simplier way like this, it works:
<form><input type='text' id='fname' /></form>
I am using jquery jquery-ui-1.7.2.custom.main.js library by the way for the tabs but I don't think that messes up the whole thing though...