Add Javascript and Graphic to Existing Joomla site(repost)

I am adding Live Chat to a website, and I need some assistance incorporating it into an existing Joomla site. The Javascript has been inserted onto the server already. I just need someone to insert the graphic and code snippet onto a few places on the website. For someone familiar with Joomla, it should take no more than 30 minutes I would think. ## Deliverables The screenshot is where on the homepage I would like the graphic to appear. I would also like the chat invite to appear on the "Contact Us" page.