I am trying to create a custom object with two buttons that, when clicked, will reveal a) another person's estimate and b) the last estimate of the current subject. I attempted to do this by switching an iframe from a blank one to one with data, and it failed (I think the blank frame ended up filling the screen). I've gotten around the issue by starting with text in the HTML as display:hidden, then used the JS command for the button:

document.getElementById("blank1").style.display = "block"

which reveals the text. I'm not sure how I would be able to track a previous response for display on a current screen in a custom object without using an iframe from a separate HTM file. Any ideas anyone? Thanks.