String.prototype.replaceAll = function(s, r) {
var t = this;
var i = t.indexOf(s);
while(i>=0){
t = t.replace(s, r);
i = t.indexOf(s);
}
return t;
}
var b = document.getElementsByTagName(body)[0];
b.innerHTML = b.innerHTML.replaceAll(http://www.2home.com.tw/forum/, http://www.2home.com.tw/bbs/);
***