Hello World! :)

here comes the first record.

I have been into some ajax programming lately. Feels like this is the future of the application development in the whole. Google's spreadsheet has totally amazed me. There is even some server->client communication. How is that implemented I wonder... Got to learn it someday.

Today I have been into some beginner programming using jQuery (http://jquery.com/)
It's really easy to learn and it saves a lot of time when it comes to DHTML tricks.

The best thing with it, is that you don't have to specify events on objects using something like onclick="foo()". With jQuery you set the events from the script area. And what is really nice is that you can select many object (and do it very easily) at once, using XPath and/or CSS.

So for example you set up a click event on a button called "btn1" like this:

$("button[@name=btn1]").click(function(){ alert("button clicked!") });

this will register an "onclick" event with the button who's name parameter is equal "btn1"

But what I was fighting with today was: how to reference the parent windows out of an iframe?
Turned out to be like this:

parent.$("element").action()

So it was as easy as putting "parent" in front of the $ sign.
Oh and also that the parent page must include the jquery source too.

Particularly what I have built today. Is a script which uploads pictures "on the fly", without a page reload. And immediately displays the newly uploaded picture on the page. For this matter I have used an iframe which had an upload form inside of it. After the form submits, the php script saves and registeres the picture in db and outputs some jQuery code, which dynamically adds the new picture thumb to the parent frame (this is why I needed to reference the parent windows with jQuery). So this way it looks as if picture being uploaded totally dynamically, without a page reload.

Soon my work will be done, I'll post a link to it.