string strreplace(string original, string toReplace, string replaceWith){
string ret = "";
string left = original;
while (strstr(left, toReplace) >= 0) {
ret += strsub(left, 0, strstr(left, toReplace));
ret += replaceWith;
left = strsub(left, strstr(left, toReplace) + strlen(toReplace));
}
ret += left;
return ret;
}