如何在javascript中禁用输入文本框上的键盘事件

I have an image, and I use keyboards to apply some manipulations on it (translation, zoom ..). Above the image, I have an input text box which shows the number of the image in the data set. How can I disable the image manipulation when the cursor is on the text box? (ie disable the behavior that I assigned to each keyboard). I would also like to still be able to edit the text box(to move to image number xx for example). From what I read here I have an image, and I use keyboards to apply s