Don't copy HTML files or graphics files (or any other files) from another web site, unless you have legal authorization. Plagiarism is illegal. The only files that you should submit are the files that you created all by yourself.
"Borrowed" code - You must obtain permission from the author and/or credit the author's work.
However, it is perfectly acceptable to include a link to someone else's web site.
However, there are many sites that allow you to legally download files (code, graphics, etc.).
"Cheating and Plagiarism are serious offences and may result in an automatic failure in the assignment, Project, test or exam and up to and including failure in the course. Further disciplinary action might be taken which may result in suspension or expulsion from the program and the College." - D.Gauvin - Business Administration "Departmental Policy" statement.
"Cheating and plagiarism are considered extremely serious academic offences... Action in response to an incident of cheating and plagiarism, up to and including the failure of a student in the course, is within the authority of the teacher." (ISEP)
"No gum is allowed during an exam: chewing could disguise a student's speaking into a hands-free cellphone to an accomplice outside. "
"Andrew Daines, who graduated in May from Cornell, where he served on a board in the College of Arts and Sciences that hears cheating cases, said Internet plagiarism was so common that professors told him they had replaced written assignments with tests and in-classwriting."
"Some educators have rejected the service and other anti-cheating technologies on the grounds that they presume students are guilty, undermining the trust that instructors seek with students. Washington & Lee University, for example, concluded several years ago that Turnitin was inconsistent with the school's honor code, 'which starts from a basis of trusting our students,' said Dawn Watkins, vice president for student affairs. 'Services like Turnitin.com give the implication that we are anticipating our students will cheat.' "
" The study also found that plagiarism was concentrated among students with lower SAT scores."
I certify that the work submitted here represents solely my own efforts. I am aware of Dawson College’s regulations about, and penalties for, plagiarism as described in The Dawson College Institutional Student Evaluation Policy (ISEP - “Academic Conduct—Cheating and Plagiarism”).
(I don't remember where I found this pledge, but it would indeed be a good idea to have all students sign and submit this pledge with every work submitted for evaluation.)