function sendEvent(typ,prm,idVisor) { thisMovie(idVisor).sendEvent(typ,prm); };

function loadFile(obj,idVisor) { thisMovie(idVisor).loadFile(obj); };

function thisMovie(movieName) {
    if(navigator.appName.indexOf("Microsoft") != -1) {
		return window[movieName];
	} else {
		return document[movieName];
	}
};

var last_currentItem = 0;
var lastImg = 'img_0';

<!-- callback des del flash. es qui ho fa practicament tot. La galeria del flash es numera de [0..n-1] -->
function getUpdate(typ,pr1,pr2,pid) {
	 if(typ == "item") { 
		if(pr1!=last_currentItem) {
			document.getElementById(lastImg).className = '';
			lastImg = 'img_'+pr1;
			document.getElementById(lastImg).className = 'imgActiva';
			last_currentItem = pr1;
			}
		}
}