var mymedia;
        var floater = null;
        var baseurl = "";

        function popupaudio( url, media ) {
                var a="toolbar=no,location=no,directories=no,menubar=no,width=400,height=270,resizable=yes,scrollbars=no";
                if (navigator.appName.indexOf("Microsoft")>=0) {
                        a += ",left=50,top=50";
                        } else {
                        a += ",screenX=50,screenY=50";
                }

                if( floater != null )
					{
                        if( floater.closed == false )
							{ 
							floater.close();
							}
					}
			
                floater=window.open( baseurl+url+".html", "VIA" + url, a);
				if (typeof floater.opener != "object")
					{
					floater.opener = self;
					}
				mymedia = media;
        }