var lastHeight;
function init() {
    aaa();
    lastHeight= right.document.body.scrollHeight;
    setInterval(function(){
        if(right.document.body.scrollHeight!=lastHeight) {
            aaa();
            lastHeight= right.document.body.scrollHeight;
            }
        },1);
}
function aaa(){
    document.all('right').height=right.document.body.scrollHeight + 20;
    }