Find and Replace in Flash ActionScript

Bummed out about the lack of regexp in ActionScript 2.0?

Well, at least you can copy and paste this
"find and replace" function into your code:

// EXAMPLE USAGE: var a = "Hello World! The World is great!"; a = findAndReplace(a, "World", "Bob"); trace(a); // a is now: Hello Bob! The Bob is great!

// Find all instances of "find" in string x // and replace with "replace" - returns new string. function findAndReplace(x, find, replace) { if (x == null || find == null) return x; if (x.indexOf(find) < 0) return x; var findLen = find.length; var marker = 0; var gotcha = x.indexOf(find,marker); var x2 = ""; while (gotcha > -1) { x2 += x.substring(marker,gotcha); x2 += replace; marker = gotcha + findLen; gotcha = x.indexOf(find,marker); } x2 += x.substring(marker); return x2; }