var NN6=navigator.userAgent.toLowerCase().indexOf("netscape6")!=-1;

var widthPagina=760

<!--======================================================== -->
tendina=new Array();            pos_tendina=new Array();

layer=new Array();              pos_layer_left=new Array();     pos_layer_top=new Array();
<!--======================================================== -->

function Nascondi(cl){
	modulo=document.getElementById(cl)
	modulo.style.visibility="hidden";
	}
function Mostra(cl){

	modulo=document.getElementById(cl)
	modulo.style.visibility="visible";
	}
	
var stato_Menu=0;

function Menu(cl){
	stato_Menu?Nascondi(cl):Mostra(cl);
	stato_Menu=!stato_Menu
	}

function men_tend(mt){
	 for(i=0;i<tendina.length;i++){
 		modulo=document.getElementById(tendina[i]);

			if(tendina[i]==mt && modulo.style.visibility=="visible") break;

			if(tendina[i]!=mt && modulo.style.visibility=="visible"){
				modulo.style.visibility="hidden";
				modulo=document.getElementById(mt);
				modulo.style.visibility="visible";
				break;
				}
		}
}

function Chiudi_Tendine(){
	 for(i=0;i<tendina.length;i++){
 		modulo=document.getElementById(tendina[i]);
		modulo.style.visibility="hidden";
		stato_Menu=0}

}

function posiz(){
	deltaVideoPagina = parseInt(((NN6?innerWidth:document.body.clientWidth)-widthPagina)/2);

	for(i=0;i<tendina.length;i++){
	modulo=document.getElementById(tendina[i]);
	if(deltaVideoPagina>0) modulo.style.left=deltaVideoPagina+pos_tendina[i];
	else modulo.style.left=pos_tendina[i];}

	for(i=0;i<layer.length;i++){
	modulo=document.getElementById(layer[i]);
	modulo.style.top=pos_layer_top[i];
	if(deltaVideoPagina>0) modulo.style.left=deltaVideoPagina+pos_layer_left[i];
	else modulo.style.left=pos_layer_left[i];}
}