Making a GIFand other image related question.

I am working with a juvenile-adult model and I am trying to make a GIF that shows what the system's attractor does as the birth rate is varied. If possible I would like to have a mutliplot where the left hand figure is the system's bifurcation diagram with a red line moving along it to show the progression of the birthrate with respect to the changing attractor which would be on the right hand side. The following is what I have so far (Though it may be way off!). Note: I have left out some of the irrelevant lines of code. CODE FOR ATTRACTOR:

for i=1:lenght(b)

X(1)=1;Y(1)=2;

for t=1:1000

X(t+1)= [...]

Y(t+1)= [...]

end

plot(X(500:T),Y(500,T),'.k')

M(i)=getframe

end

movie(M,100,2)

NOTE: This works great but I don't know how to convert the movie into a gif or format that pdf can handle. Also if goes through the first loop of the movie far too fast.

My plan for the bifurcation diagram with the advancing line was to plot the bifurcation diagram then use "framegrab", and from there plot a line on top of the image. I don't think this particular method is going to work though because it is giving me great difficulty. Essentially for this I just need a way to plot a series of lines (one at a time) ontop of another figure.

I realize this is a lot to ask help for so any advice you can give will be appreciated. I've never done a lot of image manipulation in MatLab so anything will help. If you need me to clarify anything I can. Thanks in advanced.