dialog.patch

diff --git a/ui/jquery.ui.dialog.js b/ui/jquery.ui.dialog.js
index b9f73e9..ea5226a 100644
--- a/ui/jquery.ui.dialog.js
+++ b/ui/jquery.ui.dialog.js
@@ -376,7 +376,7 @@ $.widget("ui.dialog", {
 
         if ( !$.isEmptyObject( buttons ) ) {
             $.each( buttons, function( name, props ) {
-                var click;
+                var click, buttonOptions;
                 props = $.isFunction( props ) ?
                     { click: props, text: name } :
                     props;
@@ -387,11 +387,14 @@ $.widget("ui.dialog", {
                 props.click = function() {
                     click.apply( that.element[0], arguments );
                 };
+                buttonOptions = {
+                    icons: props.icons,
+                    text: props.showText
+                };
+                delete props.icons;
+                delete props.showText;
                 $( "<button></button>", props )
-                    .button({
-                        icons: props.icons,
-                        text: props.showText
-                    })
+                    .button( buttonOptions )
                     .appendTo( that.uiButtonSet );
             });
             this.uiDialog.addClass( "ui-dialog-buttons" );