Gesture-based navigation

A user device comprising:

• one or more components to:
• detect an area of the touch display that is touched by an instrument,
• determine a gesture corresponding to the area touched on the touch display,
• perform a crossover operation when it is determined that the gesture corresponds to a crossover gesture, and
• display on the touch display, a content that includes a first child content and a second child content associated with the crossover operation, where the crossover operation includes navigating between the first child content and a second child content, where the first child content is accessible via a first parent content and the second child content is accessible via a second parent content, and where the second child content is displayed without displaying the first parent content and the second parent content when navigating between the first child content and the second child content.

A computer-readable memory containing instructions executable by at least one processor, the computer-readable memory storing one or more instructions for:

• determining a user gesture corresponding to an area touched on a touch screen;
• determining whether a first crossover operation or a second crossover operation is to be performed;
• performing the first crossover operation when it is determined that the user gesture corresponds to a first crossover gesture, where a content that includes a first child content and a second child content is displayed, such that the first crossover operation includes navigating between the first child content and a second child content, where the first child content is accessible via a first parent content and the second child content is accessible via a second parent content, and where the second child content is displayed without displaying the first parent content and the second parent content when navigating between the first child content and the second child content;
• and
• performing the second crossover operation when it is determined that the user gesture corresponds to a second crossover gesture, where a content that includes a third child content and a fourth child content is displayed, such that the second crossover operation includes navigating between the third child content and the fourth child content, where the third child content and the fourth child content are accessible via a same parent content.