Add the login bookmark on your PC Safari browser then sync bookmarks
to the iPhone.
If you can't do that, then do the following trick:
- Bookmark this page on your iPhone Safari browser
- Edit the bookmark
- Remove the prefix
http://mashedlife.com/iphone/bm.php?x=
till the bookmark address
starting with javascript:...
- If there is an appendix
#_home, remove it.
- The final good bookmark looks like:
javascript:(function() . . . appendChild(_ML_.s);})()
The task is one-time and only.
And only one login bookmark is needed for all sites.