Element.implement({
	show: function(){
		this.fade('in');
	},
	hide: function(){
		this.fade('out');
	}
});
var ww = new Element('div',{
	'id':'ww_popup'		
});

var injected = false;

var whos_who_show = function(){
	if(injected != true){
		ww.inject($('body'));
		$('coursename').addEvent('change', function(e){
			$('whos_who_form').fireEvent('submit');
		});
		
		$('whos_who_form').addEvent('submit', function(){
			this.set('send', {
				url: '/mdl_whos_who/index.php?pid=101', evalScripts:true, onComplete: function(response) {
					$('ww_content').set('html',response);
				}
			});
			this.send();
		});
		injected = true;
	}
	ww.setStyle('visibility', 'visible');
	ww.show();
};

var whos_who_hide = function(){
	ww.hide();
	ww.setStyle('visibility', 'hidden');
};

window.addEvent('domready', function(){
	
	ww.set('load', {'evalScripts': true, 'data': {'pid': 100}});
	ww.load('/mdl_whos_who/index.php');
	
	whos_who_hide();

});