Accessing form variables in a dynamic dijit.dialog (content of which is from href)

Question

Hello,

I have the following code to create a dijit.diagram which loads a form from an external link:

function openDialog(userID)
{ 
composeDialog = new dijit.Dialog({

id: 'composeDialog', title: 'Compose a Message', style: 'width: 400px', href: 'myform.php?userID='+userID }); composeDialog.show(); }

now inside my href i have a form that asks the user for several pieces of information, but I am unable to access any of the values. Also if the form is actually submitted, then the user is re-directed to the proper page but none of the variables are passed along. When I try to access my for with dijit.byId('myform') all I get is a null object. Does anybody have any idea?

Thank you very much!