Solo per voi oggi vi spedisco questa che ho trovato su flashkit, interessante...
[color=dark-blue]
function_double_click

// ---------------------------
// MovieClip.onDoubleClick
// ---
//
//
//
// ----------------------------

// MovieClip.onDoubleClick Event v1.0
//
[/color]
MovieClip.prototype.addProperty("onDoubleClick",
function() { return this.$onDoubleClick },
function(f) { this.$onDoubleClick = f; Mouse.addListener(this); }
);
Mouse.onMouseDown = function() {
if(this.last_click == undefined) this.last_click = 300;
if(getTimer() - this.last_click < 300)
this.broadcastMessage("$onDoubleClick");
this.last_click = getTimer();
};
Mouse.addListener(Mouse);

// this.onDoubleClick = function () {
// trace("DoubleClick!");
// };


enjoy!!:metallica