Something

@@ frame1: capa1
//definicion variables
var maxTransp = 100; // valor transparecia máxima
var minTransp = 30; // valor transparecia minima
var velocidad = 15; // valor velocidad

mc_boxViewer._alpha = minTransp;
mc_boxList._alpha = maxTransp;
mc_areaViewer._alpha = 0; 
mc_areaList._alpha = 0;
mc_areaList._visible = false;

//-- Función control Z-depth y alpha -- 
//---------- UP: clipBox --------------
//---------- DOWN: listBox ------------
//
upClipBox = function(){
	mc_areaViewer._visible = false;
	mc_areaList._visible = true;

	mc_boxViewer.swapDepths(mc_boxList-0);
	
	// listBox transparente
	mc_boxList._alpha = maxTransp;
	mc_boxList.onEnterFrame = function() {
		if (mc_boxList._alpha > minTransp) {
			mc_boxList._alpha -= velocidad;  // velocidad transicion
			delete onEnterFrame;
   			}
		}
	
	// clipBox opaco
	mc_boxViewer._alpha = minTransp;
	mc_boxViewer.onEnterFrame = function() { 
		if (mc_boxViewer._alpha < maxTransp) {
			mc_boxViewer._alpha += velocidad;  // velocidad transicion
			delete onEnterFrame;
			}
		}
}


//-- Función control Z-depth y alpha -- 
//---------- UP: listBox --------------
//---------- DOWN: clipBox ------------
//
upListBox = function(){
	mc_areaViewer._visible = true;
	mc_areaList._visible = false;
	
	mc_boxList.swapDepths(mc_boxViewer-1);
	
	// clipbox transparente
	mc_boxViewer._alpha = maxTransp;
	mc_boxViewer.onEnterFrame = function() {
		if (mc_boxViewer._alpha > minTransp) {
			mc_boxViewer._alpha -= velocidad; // velocidad transicion
			delete onEnterFrame;
  			}
	}
	
	// listbox opaco
	mc_boxList._alpha = minTransp;
	mc_boxList.onEnterFrame = function() {
		if (mc_boxList._alpha < maxTransp) {
			mc_boxList._alpha += velocidad;  // velocidad transicion
			delete onEnterFrame;
   			}
		}
}

//

var a = 0;
var b = 0;

if (a == 0){
	mc_areaViewer.onRollOver = upClipBox;	
	}

if (b == 0){
	mc_areaList.onRollOver = upListBox;
}


@@ frame1: capa2
loadMovie("list.swf", mc_boxList);

mc_boxViewer.onEnterFrame = function(){ 
	mc_boxList.mc_thumbA.onRelease = function(){ 
		mc_boxViewer.loadMovie('../wks/artshow/A.jpg');
		a = 1;
		upClipBox();
		delete onEnterFrame;
		//mc_areaList._visible = false;
			
}