function showPopUp(img) {
	var divId = img.id + '_popup';
	var flashId = divId + '_flash';
	var div = $(divId);

	var imgPosition = $(img.id).getCoordinates();
	var parentPosition = $(img.id).getParent().getCoordinates();
	
	div.setStyles({
		'top': imgPosition.top + imgPosition.height + 5, // - parentPosition.top +
		'left': imgPosition.left - 380 + imgPosition.width	 //- parentPosition.left 
	});
	
	var upperPart = "<div class='popup_header'><a id='popup_link' href=\"javascript:hidePopUp('" + divId + "');\">Bezár</a></div>";
	var flashPart = '<div id="' + flashId + '"><a href="http://www.adobe.com/go/getflashplayer"><img src="http://www.adobe.com/images/shared/download_buttons/get_flash_player.gif" alt="Get Adobe Flash player" /></a></div>';

	var url = "/ajax.php?func=getHelp&id=" + img.id;
	var jSonRequest = new Json.Remote(url, {onComplete: function(obj){
		if(obj.hiba) {
			alert(obj.hiba);
		}
		else {
			var flashvars = {};
			flashvars.help = obj.text; 
			var jscode = 'var params = {};var attributes = {};swfobject.embedSWF("teacher.swf", "' + flashId + '", "380", "276", "9.0.0", false, flashvars, params, attributes);';	
			div.setHTML(upperPart + flashPart);
			div.setStyle('visibility','visible');
			eval(jscode);
			new Drag.Base(div);
		}
	}}).send({'id': img.id});
}

function hidePopUp(divId) {
	var div = $(divId);
	var flash = $(divId + '_flash');
	div.setHTML('');
	div.setStyle('visibility','hidden');
}