Added tabindex property on wiki toolbar buttons and 'new category' link.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@1087 e93f8b46-1217-0410-a6f0-8f06a7374b81

public/javascripts/jstoolbar/jstoolbar.js

@@ -81,6 +81,7 @@ jsButton.prototype.draw = function() {
 	
 	var button = document.createElement('button');
 	button.setAttribute('type','button');
+	button.tabIndex = 200;
 	if (this.className) button.className = this.className;
 	button.title = this.title;
 	var span = document.createElement('span');