[jquery] full layer 팝업

(function($){
	$.fn.extend({
		fullPopupOn : function(opt) {
			ele = this;
			ele_w = this.width();
			ele_h = this.height();

			if(opt){
				if(opt.width){
					ele_w = opt.width;
					this.css('width',ele_w);
				}

				if(opt.height){
					ele_h = opt.height;
					this.css('height',ele_h);
				}
			}

			marginleft = (ele_w/2)*(-1);
			margintop = (ele_h/2)*(-1);
			html = "<div class='fullpopupbg' style='background:rgba(1,1,1,0.8); position:fixed; top:0; left:0; width:100%; height:105%; z-index:9998;'></div>";
			$('body').append(html);
			this.css({'position':'fixed','left':'50%','top':'50%','margin-left':marginleft+'px','margin-top':margintop+'px','z-index':'9999','display':'block'});
			
            $(document).on('click','.fullpopupbg',function(){
				$(ele).fullPopupOff();
			});
		},
		fullPopupOff : function() {
			$('.fullpopupbg').remove();
			this.css('display','none');
			this.attr('src','');
		},
		fullPopupChg:function(){
			marginleft = (this.width()/2)*(-1);
			margintop = (this.height()/2)*(-1);
			this.css({'margin-left':marginleft+'px','margin-top':margintop+'px'});
		}
	});
})(jQuery);

// 이 함수로 호출
$('#popup_base').fullPopupOn({
	width:400,
	height:300
}); 

<iframe id="popup_base" src="/blank" style="display:none; position:fixed; width:70%; height:80%; background:#fff; border-radius:4px; "></iframe> // 팝업표시할 아이프레임​