redirect to html page using javascript

Question

i have 2 html page the first one is the login page and the second, when i login i redirect to the main page, there is a must must execute on load, only at the first load of the page after login this method must call. when i reload or refresh this method is call again.

1- can i refresh the page without calling the onload method? if yes how?

or

2- can i redirect to a specific method in the page to avoid calling the onload method every time? if yes how

or

3- can i write any thing in the onload method that keep me calling the method only at the first time? if yes how

Note: i know that in web application it is must call load function at each time the page reload, but is there any solution that i must do to solve this problem?

Answer 1

Two options:

1. You can use cookies. Set a cookie when logging in and check for that during load. Then clear it after performing your initialization so that next load the check will fail.
2. You can use the address, either as a parameter like ?justLoggedIn, or a value in the hash after #justLoggedIn. Then check for that and redirect to the same url minus the justLoggedIn part. The advantage of the # version is that it doesn't actually reload the page, unlike when using the ? version.