problem about configurable-Collection of common programming errors

• 
  NBrowne
  c# asp.net configurable screens
  I am looking for possible approaches to the following task.Currently have a number of ASP.net pages which are essentially copies of one another but some contain textboxes,dropdownlists which others do not. this is because initially a number of pages were developed for a particular product and then another product came on board which had to do the same thing as the other pages i.e. get user to imput data and then save it. However now we are left with a large number of pages which essentially do t
• 
  tic
  javascript firebug enumerable configurable
  Here it is described how to check if innerHTML property is configurable and enumerable using Firebug/FF Web Console. How can I check the same for charCodeAt function? Object.getOwnPropertyDescriptor(HTMLElement.prototype,”charCodeAt”) return undefined.

Web site is in building