textbox effect

so im trying to make something similar to a search engine, but i wanted the pixelate effect to activate when i press any keyboard key, for example e write "nice" the pixelate effect is active for EACH letter( N,I,C,E) for about 0.5 sec

and then goes back to normal, can i do this?

https://dl.dropboxusercontent.com/u/597 ... earch.capx