I want to add a class to a body tag with jQuery.
For example if the URL is http://www.mywebsite.com/about_us.asp, I want add the first five letters, in this case 'about', to the body tag:
<body class="about">
How can I do that?
This should do it:
var newClass = window.location.href;
newClass = newClass.substring(newClass.lastIndexOf('/')+1, 5);
$('body').addClass(newClass);
The whole "five characters" thing is a little worrisome; that kind of arbitrary cutoff is usually a red flag. I'd recommend catching everything until an _ or .:
newClass = newClass.match(/\/[^\/]+(_|\.)[^\/]+$/);
That pattern should yield the following:
../about_us.html : about../something.html : something./has_two_underscores.html : has