void
delete_image(ImageList *im)
{
if (im->prev)
im->prev->next = im->next;
else
term.images = im->next;
if (im->next)
im->next->prev = im->prev;
if (im->pixmap)
XFreePixmap(xw.dpy, (Drawable)im->pixmap);
free(im->pixels);
free(im);
}