javascript

Even if I finally found Web workers:error and debugging article that explains it well and exensively, I just had to report that developing with Firefox is still the right choice in most case.

Using a model with nested observable array I did not know how to refer to self in a event handler (click) on a element in a cycle on that observableArray ...

Google webmaster tool signals scanning errors. The is option to signal error a scorrected, but sometime a lot of error is solved at once, but interface do not give option to select it all.

Also this trick could be usefull in other service..

I loaded this code in chrome console (developer tool), modified from example code https://developer.mozilla.org/en/DOM/element.dispatchEvent

Due to page performance you should load javascript at the end of page (see http://developer.yahoo.com/performance/rules.html), at least all javascript you can defer to load. There are script that have to load at the very begin of page. But are you sure there is no option?

Well, actually this is a critical consideration on my own js script. When I wrote imagedata drupal example module I replaced {'imagedata ...} with a direct call to jquery plugin.

I lost some time to debug this

$("#link").click(function(){
   $("#target").load('url/to/load');
});

The problem is on Internet Explorer (all version) that refuse to load data in #target, using $.get and innerHTML(data) do not help. The problem is with no well formed html! Internet Explorer refuse to load in dom a malformed html.
Thus

function upfield() {
  var el = $('#selectedfield').children('[@selected]:first').prev();
  $("#selectedfield")
    .children('[@selected]')
    .each(function(){
	$(this).insertBefore(el);
      });

}

function downfield() {
  var el = $('#selectedfield').children('[@selected]:last').next();
  $("#selectedfield")
    .children('[@selected]')
    .each(function(){
	$(this).insertAfter(el);
	el = $(el).next();
      });
}

XMLHttpRequest use, works only if url is on same site. checklogin.php give <KO/> if login è fails <OK>XXX</OK> with XXX id of user when login è is ok