Bisphenol synthesis mechanism!!

Does anyone have any idea how we make BPA using acetone and 2 phenol? ..........any tips or hints would be great!!! I am stuck on the mechanism!!!

........O
.........||
CH3-C-CH3 + H+ ===>

........OH(+)
........||
CH3-C-CH3 ===>

.........OH
.........|
CH3-C-CH3 ==C6H5-OH==>
........(+)

......CH3
.......|
HO-C-C6H4-OH + H+ ===>
.......|
......CH3

.............CH3
..............|
(+)H2O-C-C6H4-OH ===>
..............|
.............CH3

.....CH3
.....|
(+)C-C6H4-OH == C6H5-OH ==>
.....|
.....CH3

..................CH3
..................|
HO-C6H4-C-C6H4-OH + H+
..................|
,,,,,,,,,,,,,,,,,,CH3

Hi Amy!

Please look at here: http://www.amberlyst.com/bpa.htm

Bye from Italy,

C6H6