// create blurFilter object
// your x and y properties determine how much that axis is blurred.
// if you use values that are powers of 2, the filter will render more quickly.
// quality can be set by 1 = low, 2 = medium, and 3 = high
blur = new BlurFilter(BLUR-X, BLUR-Y, QUALITY);
// Actionscript assumes you'll want to add multiple filters at once.
// If you want to, you can add all of your filters to an array and
// apply it that way. If you only have one, just create a quick array this way.
myObject.filters = [blur];