function pop(pagina, titolo, w, h) {
 var left = (screen.width/2)-(w/2);
 var top = (screen.height/2)-(h/2);
 var targetWin = window.open (pagina, titolo, 'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=yes, copyhistory=no, width='+w+', height='+h+', top='+top+', left='+left);
}

function popFlowplayer(w, h, file) {
 var left = (screen.width/2)-(w/2);
 var top = (screen.height/2)-(h/2);
 var targetWin = window.open ('videoplayer.php?w='+w+'&h='+h+'&file='+file, 'Impresa', 'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=yes, copyhistory=no, width='+w+', height='+h+', top='+top+', left='+left);
}

// CENTRA ELEMENTO
jQuery.fn.center = function () {
 this.css("position","absolute");
 this.css("top", ( $(window).height() - this.outerHeight() ) / 2+$(window).scrollTop() + "px");
 this.css("left", ( $(window).width() - this.outerWidth() ) / 2+$(window).scrollLeft() + "px");
 return this;
}

// CENTRA VIDEO HOME
jQuery.fn.centerhomevideo = function () {
 this.css("position","absolute");
 this.css("top", ( $(window).height() - this.outerHeight() ) / 2+$(window).scrollTop() + "px");
 this.css("left", "200px");
 return this;
}