[Javascript] Check boxs and table row back ground colors

[Nick Fitzsimons]

Steve Clay wrote:
> Tuesday, April 25, 2006, 11:06:32 AM, Mike Dougherty wrote:
> 
>>loTR.className = loTR.className.replace(/\shighlighted/g,""); /* remove the class */
>>Note:  that regexp is probably not 100% right (sorry)
> 
> 
> /\s*\bhighlighted\b/g
> 
> \s* = zero or more whitespace chars
> \b = word boundaries ensure not inside another word
> 
> invaluable regular expression workbench:
> http://osteele.com/tools/rework/
> 
> Steve

Unfortunately word boundaries can occur within classNames, as they 
include hyphens, meaning the above would incorrectly find a match on

class="highlighted-blob"

instead of just

class="highlighted".

Use:
/(^|\\s)highlighted(\\s|$)/g

which will match "highlighted" in the cases of:

1. At start of string followed by whitespace;
2. At end of string preceded by whitespace;
3. At start and end of string - that is, there is no whitespace anywhere.

Not my own work - see the comments in Robert Nyman's "Ultimate 
getElementsByClassName", particularly:
<http://www.robertnyman.com/2005/11/07/the-ultimate-getelementsbyclassname/#comment-1583>

Cheers,

Nick.
-- 
Nick Fitzsimons
http://www.nickfitz.co.uk/