The elusive HTML ‘id’ attribute when using <g:form>

In most Grails tags, the usual HTML attributes get passed through to the output HTML, for example the ‘class’ attribute below:

<g:textField name="name" class="inputField" value="${book?.name}" />
results in:
<input type="text" class="inputField" name="name" value="" id="name" />

I tried to do this with a g:form tag and passed in an “id” attribute so I could reference the form in javascript. But you can’t pass an id attribute to the g:form tag because the “id” attribute is reserved for the id of the domain object you’re dealing with:

<g:form action="save" method="post" id="bookForm">
results in:
<form action="/form/book/save/bookForm" method="post" >
instead of this (like what I was hoping for):
<form action="/form/book/save" method="post" id="bookForm">

As a workaround I abandoned the g:form tag whenever I needed to pass through an “id” attribute and just wrote a standard HTML <form> tag instead…until I noticed that the “name” attribute of g:form is also output as the “id” in the generated HTML. So now, I just write a g:form tag with a “name” attribute and end up with the result I’m looking for! Here’s the example:

<g:form action="save" method="post" name="bookForm">
results in:
<form action="/form/book/save" method="post" name="bookForm" id="bookForm" >

“bookForm” shows up in the HTML code as both the name and the id of the HTML form tag.