have different border color at same time: like y1 blue and y2 red

[Mohammad]

Is there any way to set differnt color for x1y1 and x2y2 or even have each border line with different color at the same time?

I want to draw somethinkg like this

plot x*sin(x) axes x1y1, 100*x*x axes x2y2

where x1y1 are blue and x2y2 are red!