function popup(pic, type){
	var h = 360;
	var w = 500;
	var l = (screen.width - w) / 2;
	var t = (screen.height - h) / 2;
	window.open('popup-fondos.php?pic='+pic+'&type='+type,'zoom','width='+w+', height='+h+', scrollbars=0, resizable=0, status=0, top='+t+', left='+l);
}