var zoom;
var pippo;
var pluto;
var paperino;

function center_me(w,h){
	if(navigator.appName.indexOf('Explorer')+1){
		var win_width=w;
		var win_height=h;
	} else {
		var win_width=window.outerWidth;
		var win_height=window.outerHeight;
	}
	var pos_x=(screen.width-win_width)/2;
	var pos_y=(screen.height-win_height)/2;
	moveTo(pos_x,pos_y);
}

function open_pop(url,w,h){
	if(pippo) pippo.close();
	pippo = window.open(url,'pop','height='+h+',width='+w+'location=no,resizable=no,scrollbars=yes');
}

function open_scheda(url,w,h){
	if(pluto) pluto.close();
	pluto = window.open(url,'scheda','height='+h+',width='+w+'location=no,resizable=no,scrollbars=yes');
}

function close_pop(){
	if(pippo) pippo.close();
}
function close_scheda(){
	if(pippo) pluto.close();
}

function open_zoom(url,w,h){
	if(zoom){
	      zoom.close();
           }
        zoom = window.open(url,'pop','height='+h+',width='+w+'location=no,resizable=no,scrollbars=no');
        zoom.focus();
}

function open_listino(url,w,h){
	if(paperino) paperino.close();
	paperino = window.open(url,'pop','height='+h+',width='+w+'location=no,resizable=no,scrollbars=yes');
}

function close_listino(){
	if(paperino) paperino.close();
}