How to hide Apply button in 8.54

In Tools 8.49 we have a small piece of javascript that is hiding the Apply button when we transfer to a page outside of the current component.  This javascript is not working in Tools 8.54.  Has anyone tried to hide the Apply button in 8.54?  Below is the java script we were using in 8.49

<script language="Javascript">

function HideApply()
{
z_apply_btn = document.getElementById("#ICApply");
if(z_apply_btn != null)
{
z_apply_btn.style.visibility = "hidden";
clearInterval(hide_button);
}
}

hide_button = setInterval("HideApply()",1);
</script>

Thanks!

Karen