Hide Element Function

Hi,

I want to write a function to execute on page load to hide the calendar if it's an old calendar.

So I thought I when I upload the calendar I can have a hidden element with text content of the month and write a function to get the current month and check against the element text content and if it matches display block, if it's doesn't display none which will basically hide the calendar if it's not up to date.

This is what i have so far. I'm stuck as my if statement is not working. Any...

Hide Element Function

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