Was using .bind but now haved to use .delegate... have tried .undelegate? - jquery-selectors

Question

Heres the jsfiddle, jsfiddle.net/kqreJ
So I was using .bind no problem for this function but then I loaded more updates to the page and found out that .bind doesn't work for content imported to the page but just for content already on the page! Great!
So I switched it up to .delegate which is pretty cool but now I can't figure out how to .bind .unbind my function the way it was???
Function using .bind which worked perfect... except didn't work on ajax content.. :(
$('.open').bind("mouseup",function(event) {
var $this = $(this), handler = arguments.callee;
$this.unbind('mouseup', handler);
var id = $(this).attr("id");
var create = 'nope';
var regex = /\d+$/,
statusId = $('#maindiv .open').toArray().map(function(e){
return parseInt(e.id.match(regex));
});
var divsToCreate = [ parseInt(id) ];
$.each(divsToCreate, function(i,e)
{
if ( $.inArray(e, statusId) == -1 ) {
create = 'yup';
}
});
if( create == 'yup' ) {
if(id) {
$.ajax({
type: "POST",
url: "../includes/open.php",
data: "post="+ id,
cache: false,
success: function(html) {
$('.open').html(html);
$this.click(handler);
}
});
}
}
});
New function using .delegate that is not binded and creates multiple instances?
$('#maindiv').delegate("span.open", "mouseup",function(event) {
var $this = $(this), handler = arguments.callee;
$this.unbind('mouseup', handler);
var id = $(this).attr("id");
var create = 'nope';
var regex = /\d+$/,
statusId = $('#maindiv .open').toArray().map(function(e){
return parseInt(e.id.match(regex));
});
var divsToCreate = [ parseInt(id) ];
$.each(divsToCreate, function(i,e)
{
if ( $.inArray(e, statusId) == -1 ) {
create = 'yup';
}
});
if( create == 'yup' ) {
if(id) {
$.ajax({
type: "POST",
url: "../includes/open.php",
data: "post="+ id,
cache: false,
success: function(html) {
$('.open').html(html);
$this.click(handler);
}
});
}
}
});
I've spent hours trying to figure this out because I like learning how to do it myself but I had to break down and ask for help... getting frustrated!
I also read that when your binding and unbinding .delegate you have to put it above the ajax content? I've tried using .die() and .undelegate()... Maybe I just don't know where to place it?

Answer 1

Take a look at undelegate
It does to delegate what unbind does to bind.
In your case, I think it'd be something like:
$('#maindiv').undelegate("span.open", "mouseup").delegate("span.open", "mouseup" ...
Then you can drop the $this.unbind('mouseup', handler); within the function.