External swf, swish, and then another

hiya fellas.
im trying to dynamically load my backgrounds using external swf’s, which i managed to do. but then i want from the loaded swf to be able to load another swf.

check it out here, and you’ll see what you mean. the bottom two menu items are on the external swf and clicking that i want to load another, and then another swf etc.

http://www.thehouseofspank.com/html/home.html

using the following code on the main comp.

on (release) {
if (_root.currMovie == undefined) {
_root.currMovie = “custo1”;
container.loadMovie(“custo1.swf”);
} else if (_root.currMovie != “custo1”) {
if (container._currentframe>=container.midframe) {
_root.currMovie = “custo1”;
container.play();
}
}
}