Clicked on Picture, program ran 
I have a spreadsheet-bound script that is invoked by clicking an image in the spreadsheet. I've found that the script can be blocked if a cell that it needs to modify is active or being edited by the user. The code could be anything, even as something as simple as this:
function newf()
When the cell R4 is open, the function will ignore the cell. How do I deselect an open cell when clicking on an image to run a script? The easy (manual) solution would be to click off the open cell prior to clicking on the image, but I am trying to make the script fool-proof and this can be a costly concern. Is there any way that the function can forcefully deselect an active cell? Edit: I do not mean active cell. Definitely "open cell." Here are pictures of the error. Open cell with data being entered
Clicked on Picture, program ran
