I need script that looks for every instance on a page of numeric value with
decimal places. Then strip the decimal and the two decimal places.

Effectively, I want to truncate every currency value back to whole currency units, removing fractions or cents.

Any ideas how to do it with JQuery?

Why do you think jQuery is going to help you with this? Are the numbers located within common tags, in some way that easy to identify with CSS selectors?

I am looking for a way to parse all text nodes that contain a currency symbol like Japanese yen. Currently they are outputed with 2 decimal places which is incorrect.

Each Yen amount is a child of either a <span> or <p> tag.

I think its possible to select all the nodes which contain the symbol and then do something with them in jQuery via the contents() function:

http://docs.jquery.com/Traversing/contents

Now how do i remove any whitespace from the end of the string THEN cut the decimal and trailing two zeros (ie. the final three characters of the string)?