Dialog: Don't use .attr( props, true ) for creating buttons since that API doesn't exist in jQueery 1.3.2. Fixes #7226 - Dialog buttons badly handled with JQuery 1.3.2.

ui/jquery.ui.dialog.js

@@ -37,6 +37,18 @@ var uiDialogClasses =
 		maxWidth: true,
 		minHeight: true,
 		minWidth: true
+	},
+	// support for jQuery 1.3.2 - handle common attrFn methods for dialog
+	attrFn = $.attrFn || {
+		val: true,
+		css: true,
+		html: true,
+		text: true,
+		data: true,
+		width: true,
+		height: true,
+		offset: true,
+		click: true
 	};
 
 $.widget("ui.dialog", {
@@ -376,12 +388,21 @@ $.widget("ui.dialog", {
 					{ click: props, text: name } :
 					props;
 				var button = $('<button type="button"></button>')
-					.attr( props, true )
-					.unbind('click')
 					.click(function() {
 						props.click.apply(self.element[0], arguments);
 					})
 					.appendTo(uiButtonSet);
+				// can't use .attr( props, true ) with jQuery 1.3.2.
+				$.each( props, function( key, value ) {
+					if ( key === "click" ) {
+						return;
+					}
+					if ( key in attrFn ) {
+						button[ key ]( value );
+					} else {
+						button.attr( key, value );
+					}
+				});
 				if ($.fn.button) {
 					button.button();
 				}