Find html imput text?

[KINGMOFO]

Ok i want to make that will get the text of a word, and that if say the word is "Day1" To keep the Day the same, but change value of 1 to +1 that would make it 2. i know how to do that part. the part i dont get is how do i have it find the text from html element? i have tried findrx but i dont think its right becuase didnt work. idk how to seperate the text from the number? help plz?

[redbull2k]

str s=el.Text
out s

[Gintaras]

Macro

Code:

Copy      Help

str s="day1"
str s2 s3
s2.get(s 0 3)
s3.get(s 3)
int i=val(s3)+1
s.from(s2 i)
out s

[KINGMOFO]

tyvm