Question

Hello
I wonder how Replace automatically links on my site
that start with:

http://site.com/00000/

to:

http://site.com/11111/

detects> replaces

Answer 1

CSS3 attribute “starts with” selectors help you there (and jQuery supports them on all of the browsers it supports — with native features if possible, for speed). Then just use an each loop and update the href property of the raw a element:

$("a[href^='http://site.com/00000/']").each(function() {
    this.href = "http://site.com/11111/" + this.href.substring(21);
});