Question: I have UL in my page, and it is empty.
I start populating it with LI using javascript.

How can I use this newly added dynamic data in the asp.net in the postback phase?

that is because my submit button is asp.net control.
I do not want to use JS POST.

thanks

Answer: 
I would propose

```
1 + getrand100() % 20 

```

for the first case (20) and

```
(getrand100()%2)*100 + getrand100()

```

for the latter (200).
Using `Java` Something like this would generate a randomNumber in the required range.

```

int maxLimit=85;
Double someNumber = Math.random()*maxLimit;
int randomNumber=random.intValue(); // return a number from 1 to 85

```

In your case you could simply divide your method result by 100, then multiply by the `maxLimit` (20 or 200 )