fix #649 페이지 하단으로 스크롤 했을 때 문제 보완

modules/admin/tpl/css/admin.css

@@ -358,6 +358,9 @@ body>.x,
 .x_modal-backdrop {
 	display: none;
 }
+.x_modal {
+	top: 30px;
+}
 .x_modal-backdrop {
 	opacity: .6;
 	filter: alpha(opacity=60);
@@ -410,7 +413,7 @@ body>.x,
 	min-width: 220px;
 }
 .x .x_form-horizontal .x_control-group {
-	margin-bottom: 10px;
+margin-bottom: 10px;
 }
 .x input[type="text"], 
 .x input[type="password"], 

modules/admin/tpl/js/admin.js

@@ -426,8 +426,7 @@ jQuery(function($){
 				var modalBodyHeight = xeModalBackdropHeight;
 				modalBodyHeight -= $modal.find('.x_modal-header:visible').height();
 				modalBodyHeight -= $modal.find('.x_modal-footer:visible').height();
-				modalBodyHeight -= $modal.offset().top;
-				modalBodyHeight -= 120;
+				modalBodyHeight -= 150;
 
 				$modal.find('.x_modal-body').css('height', modalBodyHeight);