I am having a strange problem with my WSAD. We have some jsp pages which need to be modified. When I open the project in WSAD, most of the code is shown in dull shade and wouldnt let me modify that part. I can only insert new stuff which uses the available suggestions( like etc.. eventhough I add them, as soon as its added, I cannot delete it.. I have to revert the changes to get it off), I cannot delete any of the existing code which is shown in the dull shade nor add some random text. Can anyone please suggest me what can be done. Thanks in advance.
( I made sure that the file doesnt have any readonly attributes and also looked for any edit options)