Help with alert on this formula

[nife01]

This formula draws a point every time positive DMI makes a higher high than its most recent high. The formula will plot a point for each subsequent bar that is higher than that most recent high. I would like to get an alert to come up only for the 1st bar that makes a higher high. I've been trying to use the wizard, mix & match with other formulas, but I'm still not very strong at EFS. Any help would be appreciated.

Ian