Button to open Jquery Dialog is not working - jquery-ui

Question

I am playing with Jquery UI
I create a dialog on the fly from a DIV, i gave this DIV and ID and a button to call a closeDialog Function
It works fine as shown on this example
http://jsbin.com/ubovej
The problem I am having, is that if I d load a page THAT contains the BUTTON. The button will not work
as in:
$("<div id='mydialog1'>").dialog({
autoOpen: false,
modal: false,
width: 740,
height: 840,
title: 'Dialog1 = dynamic',
open: function(e, ui){
$(this).load(myUrl);
}
});

Answer 1

If this is the button Click Event code then
autoOpen: false,
should be
autoOpen: true,
EDIT: If you don't want it opened til you click the button then:
Do this when you want the dialog created.
var $dialog = $("<div id='mydialog1'>").dialog({
autoOpen: false,
modal: false,
width: 740,
height: 840,
title: 'Dialog1 = dynamic',
open: function(e, ui){
$(this).load(myUrl);
}
});
and do this after they click the button (only after the dialog is created)
$("button_selector").click(function () {
$dialog.dialog("open");
});
EDIT: Try changing
function closeDialog1(){
alert('closing Dialog1');
window.parent.$('#mydialog1').dialog('close');
return false;
}
to
function closeDialog1(){
alert('closing Dialog1');
$('#mydialog1').dialog('close');
return false;
}
Or a better way to do this might be
$("<div id='mydialog1'>").dialog({
autoOpen: false,
modal: false,
width: 740,
height: 840,
title: 'Dialog1 = dynamic',
open: function(e, ui){
$(this).load('dialogtest1a.html');
},
buttons: {
"Close" : function () {
$(this).dialog("close");
}
}
});
Does the button that closes the dialog HAVE TO be in the page you are loading?