[ jQuery ] 이미지 센타로 오게하는...

var left = ( $(window).scrollLeft() + ($(window).width() - $layerPopupObj.width()) / 2 );

var top = ( $(window).scrollTop() + ($(window).height() - $layerPopupObj.height()) / 2 );

$layerPopupObj.css({'left':left,'top':top, 'position':'absolute'});