Show / Hide Image

Is there a way to show or hide an image based on a field value in Sign? I tried with java script but found out that it is not supported in Sign. Is there another way?

Example:

Best scenario:

If field1 LIKE text3 show image1 & textbox1

If field1 NOT LIKE text3 show image2 & textbox2

If like is not supported I an also use = and !=

Thanks