Google设备上的Google-Apps-Script小工具在iOS设备上不一致

I am creating UI in Google Sites by inserting a google apps script Gadget. Things work well on my desktop, but when I access the site on my iPhone or iPad, then I get intermittent UI behavior. That is, my buttons or text boxes do not respond every time these are touched. I have broken this down to the basic code for my script, below, and still see this. Thanks for your time - Larry KingI am creating UI in Google Sites by inserting a