Why can't I use "document.getElementById" in catalog item's client script

[Allen17]

error log: TypeError: Cannot read property 'getElementById' of null，I didn't check the Isolate script

[The SN Nerd]

Perhaps tell us the outcome you are trying to achieve and we may be able to provide a best practice way of doing it?

[Allen17]

I want to get the value of the variables' variables to control the display and hiding of one of the variables in the variable set

[The SN Nerd]

Can you provide screenshot / code snippet?
I'm unsure what you mean by "variables' variable"

[Allen17]

• I want to use default IT Equipment's value to control the display and hiding of a field in the variable set

[rswhite]

Hi Paul,

I am trying to get the add to cart function to clear out the current form when pressing so I can have users request other items without having to delete the current data.  How would this need to change in order to use something other than "getElementById"?

This is onLoad catalog client script is causing the error.

function onLoad() {

document.getElementById('add_to_cart_button').addEventListener("click", function(){
reloadWindow(window);

});
}

Thank you!

Rachel