补充

public/resource/lib/js/jquery-photo-gallery/jquery.photo.gallery.js

@@ -607,7 +607,7 @@ $.extend({
 			$(_jg).remove();
 		});
 		
-		$('.oper').click(function(e){
+		$('.oper').attr('title', '双击图片关闭，或者右上角关闭，滚动鼠标可放大').dblclick(function(e){
 			if(e.target.tagName !== 'IMG'){
 				var _parent =  window.parent || window.top,
 					_jg = _parent.document.getElementById("J_pg");

public/resource/lib/js/jquery-photo-gallery/photoGallery.css

@@ -23,7 +23,7 @@ body {
 }
 header{
     position: absolute;
-    height: 30px;
+    height: 62px;
     width: 100%;
 }
 .winControl {
@@ -53,9 +53,9 @@ i{
 	display: inline-block;
 }
 .icon_close-big{
-    width: 18px;
-    height: 18px;
-	background-image: url('icon/close_big.png');
+    width: 54px;
+    height: 54px;
+	background: url('icon/close_big.png') no-repeat center center/54px 54px;
 }
 .icon_close-small{
     width: 13px;
@@ -225,7 +225,7 @@ i{
     bottom: 0;
     right: 0;
     left: 0;
-    margin: auto;
+    margin: 62px 0 0;
     z-index: 99999;
 }
 .gallery .oper i{
@@ -239,10 +239,12 @@ i{
 .gallery .oper .prev{
 	float:left;
 	margin-left: 9px;
+	display: none;
 }
 .gallery .oper .next{
 	float:right;
 	margin-right: 9px;
+	display: none;
 }
 .gallery .oper .prev.active i, .gallery .oper .next.active i{
 	display: inline-block;