why break this up javascript fragment?

Question

Possible Duplicate:
Why split the <script> tag when writing it with document.write()?

I don't really do Javascript programming and was hard to google this but have seen something like this in a couple of different places (by good developers):

document.writeln('<scr'+'ipt src="'+pcheck+'" type="text/javascript"></scr'+'ipt>');

With the split always between the r and the i. What does this achieve?

Answer 1

This is to prevent any script blockers from loading this script, because they cannot find the "script" word within the text.