hello I am new in writing javascript, I am doing a web page that when an user rolls the mouse over a picture a text will be display in an specific part of the webpage(iframe) and when the user moves out the mouse the text will disapear.

Here is some of my code but at this point it is not clearing the text when the mouse is out, any help will be much apreciate.

Code:
<title>Parts of the Brain</title>
<link
...