hello everybody

i have seen many site that when I want to copy the text, I could not. so how the webmaster do that?

are there valid html scripts for that?

thank you

can you show us an example or two? there may be different ways.

hey
i don't remember the web site

but when I want to copy with the right click there is a message that tells no copying
so i want to use that script in my web site.

They probably just used a simple no-right click script.
For copying text (and anything else it's meant to do) that is easily got around, just use Ctrl+C. If you use a no highlight script it makes it a little bit harder, but only for people who don't know about view source. No script will work for protecting your site against people taking things from it.
http://www.dynamicdrive.com/dynamicindex9/ - both scripts can be found here, no select is a bit further down the page

thank you very much