i need jquery to work on a browser locally. how do i know if it is installed and how do i install it ?
my question is specific to being able to run this code:
onmouseover="evt.target.setAttribute('opacity', '0.5'); $('#someDiv').show();"
onmouseout="evt.target.setAttribute('opacity', '1'); $('#someDiv').hide();"
put this right above your closing body tag:
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.js"
language="javascript" type="text/javascript"></script>
jquery isn't "installed" into a browser. it's a js library referenced from the web page you are viewing.
EDIT: This works if you have internet access. If not, you will have to download that file to your local system and reference the local path.
jQuery isn't installed like a program, it's a file that needs to be included in your source code somehow, the most common practice is to include by adding <script type='text/javascript' language='javascript' src='local/path/to/jquery.js'></script> in the <head> section of your page.
If you are going to include jQuery locally, as per Robert's suggestion, you will first have to download it from here: http://code.jquery.com/jquery-1.4.2.min.js