Abstract: Provided are a method and device for controlling scrolling of a document, the document has a marked section and is scrolling-displayed within a display area, and the method comprises detecting whether the document is scrolled to the marked section, and restricting the scrolling of the document when the document is scrolled to the marked section. The method and device can control the scrolling of the document according to contents of the document, so that the contents cannot be neglected due to quick scrolling of the document.

Abstract: It has been found that strongly basic molecular sieves can be used to make stable, relatively selective catalysts for reactions between carbon- and hydrogen-containing species if the strongly basic molecular sieve is combined with a volatile transition metal carbonyl compound. Although the volatile transition metal compound preferably contains initially only a single transition metal atom, clusterification can convert this compound to a compound or ion of the formulaH.sub.a M.sub.b (CO).sub.c (I)where a, b, and c are nubers greater than zero but no more than about 15, 1 to 2 being typical for a and 3 to 4 being typical for b. The polynuclear (i.e. poly-metal atom) compounds of formula (I) are believed to be trapped within "supercages" of the molecular sieve structure. To obtain the strongly basic molecular sieve used as a starting material for making the catalyst, the molecular sieve is treated with an alkali metal azide and the azide is then decomposed.