<!--
 	var totLayers=4;

	var layersVisibili=1;

	var tableWidth = screen.width-380;

	function init(){

       	if (navigator.appName == "Netscape") {

		   layerStyleRef="layer.";

 			layerRef="document.layers";

			styleSwitch="";

			}else{

 			layerStyleRef="layer.style.";

			layerRef="document.all";

 			styleSwitch=".style";

			}
			mostraLayerNum(0)
	}

	function mostraLayerNum(number){

 		var numeroLayer=number;

		nascondiLayer(eval('"layer' + layersVisibili+'"'));

 		mostraLayer(eval('"layer' + numeroLayer+'"'));

 		layersVisibili=numeroLayer;	 	
	}

	function mostraLayerPrec(){

 		var numeroLayer=layersVisibili-1;

 		if (numeroLayer < 1){numeroLayer=totLayers;}

 		nascondiLayer(eval('"layer' + layersVisibili+'"'));

 		mostraLayer(eval('"layer' + numeroLayer+'"'));

 		layersVisibili=numeroLayer; 	
	}

	function showNextLayer(){

 		var numeroLayer=layersVisibili+1;

 		if (numeroLayer > totLayers){numeroLayer=1;}

 		nascondiLayer(eval('"layer' + layersVisibili+'"'));

 		mostraLayer(eval('"layer' + numeroLayer+'"'));

 		layersVisibili=numeroLayer; 	
	}

	function mostraLayer(layerName){

 		eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="visible"'); 	
	} 	

	function nascondiLayer(layerName){

 		eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="hidden"'); 	
	}
//-->