14. The computer-implemented method of claim 4 , wherein the instructions are further executable by the one or more processors to perform acts comprising: displaying a page number and a section number on the touch screen, the page number corresponding to the displayed page, the section number corresponding to the displayed section.
4. A computer-implemented method for navigating an electronic document on a terminal, comprising: displaying a page of a section of the electronic document on a touch screen of the terminal; defining, on the touch screen, at least a first region, a second region, and a third region; in response to detecting a tap gesture on the first region, displaying a slider on a slide bar on the touch screen, the slide bar including an expanded part corresponding to the displayed section of the electronic document, the expanded part being disproportionately larger than other parts of the slide bar corresponding to other sections of the electronic document, the slide bar displayed without displaying divisions between the expanded part and the other parts of the slide bar; detecting a drag gesture to move the slider on the slide bar; displaying, by a processor of the terminal, another page of the electronic document on the touch screen based on the drag gesture; displaying a next page of the electronic document after detecting the tap gesture on the second region; and displaying a previous page of the electronic document after detecting the tap gesture on the third region.