fso.MoveFolder("C:\Temp\folder1", "C:\Temp\folder2\");

fso.MoveFolder("C:\Temp\folder1", "C:\Temp\folder1\");

if (fso.FolderExists("C:\Temp\myFolder")) {
    document.write("myFolder exists.");
}
else {
    document.write("myFolder does not exist.");
}