I have read about de-obfuscating JS files and about multi-layered obfuscation. I have come across a file (which I have uploaded here) and it doesn't seem to be obfuscated except for lines 21 and 42. I there seems to be some HTML components on those lines but when I tried using JSBeautifier and JSDetox on it, it doesn't help.
Have any of the reverse engineers come across this type of obfuscation? if yes, how is it done?
Is thereany way to de-obfuscate it?