A method of controlling a list scroll bar, the method comprising: obtaining a list including a plurality of first items (214, 216) corresponding to letters of a first alphabet and a plurality of second items corresponding to letters of a second alphabet, wherein the second alphabet is different from the first alphabet; displaying, on a touch screen, the list scroll bar and at least a portion of the plurality of first items (214, 216) included in the list, wherein a plurality of first indices are displayed together with a second representative index in the list scroll bar, the plurality of first indices corresponding to the letters of the first alphabet and sequentially arranged in a first predetermined order, the second representative index corresponding to one of the letters of the second alphabet; and based on a first user input on an area in which at least the portion of items are displayed, scrolling the list, and based on a portion of the plurality of second items being displayed by scrolling the list, changing indices displayed in the list scroll bar by: in place of the second representative index, displaying a plurality of second indices, corresponding to the letters of the second alphabet, sequentially arranged in a second predetermined order; and in place of the plurality of first indices sequentially arranged in the first predetermined order, displaying a first representative index corresponding to one of the letters of the first alphabet; the method further comprising: based on a second user input selecting the second representative index in the list scroll bar, changing the indices displayed in the list scroll bar by: in place of the second representative index, displaying the plurality of second indices, corresponding to the letters of the second alphabet, sequentially arranged in the second predetermined order; and in place of the plurality of first indices sequentially arranged in the first predetermined order, displaying the first representative index corresponding to the one of the letters of the first alphabet. obtaining a list including a plurality of first items (214, 216) corresponding to letters of a first alphabet and a plurality of second items corresponding to letters of a second alphabet, wherein the second alphabet is different from the first alphabet; displaying, on a touch screen, the list scroll bar and at least a portion of the plurality of first items (214, 216) included in the list, wherein a plurality of first indices are displayed together with a second representative index in the list scroll bar, the plurality of first indices corresponding to the letters of the first alphabet and sequentially arranged in a first predetermined order, the second representative index corresponding to one of the letters of the second alphabet; and based on a first user input on an area in which at least the portion of items are displayed, scrolling the list, and based on a portion of the plurality of second items being displayed by scrolling the list, changing indices displayed in the list scroll bar by: in place of the second representative index, displaying a plurality of second indices, corresponding to the letters of the second alphabet, sequentially arranged in a second predetermined order; and in place of the plurality of first indices sequentially arranged in the first predetermined order, displaying a first representative index corresponding to one of the letters of the first alphabet; in place of the second representative index, displaying a plurality of second indices, corresponding to the letters of the second alphabet, sequentially arranged in a second predetermined order; and in place of the plurality of first indices sequentially arranged in the first predetermined order, displaying a first representative index corresponding to one of the letters of the first alphabet; the method further comprising: based on a second user input selecting the second representative index in the list scroll bar, changing the indices displayed in the list scroll bar by: in place of the second representative index, displaying the plurality of second indices, corresponding to the letters of the second alphabet, sequentially arranged in the second predetermined order; and in place of the plurality of first indices sequentially arranged in the first predetermined order, displaying the first representative index corresponding to the one of the letters of the first alphabet. in place of the second representative index, displaying the plurality of second indices, corresponding to the letters of the second alphabet, sequentially arranged in the second predetermined order; and in place of the plurality of first indices sequentially arranged in the first predetermined order, displaying the first representative index corresponding to the one of the letters of the first alphabet.