Controllable scrolling area on the page

Effect Preview Next we will explain in detail how to create this effect: First, add ". Opacity {filter: alpha (opacity = 100)" to the style sheet! <Style type = "text/CSS"> <! -- . Opacity {filter: alpha (opacity = 100 )} --> </Style> Then add the following to the HTML code: <SCRIPT> Function movstar (A, time ){ Movx = setinterval ("mov (" + A + ")", time) } Function movover (){ Clearinterval (movx) } Function mov (){ Scrollx=new_date.doc ument. Body. scrollleft Scrolly1_new_date.doc ument. Body. scrolltop Scrolly = scrolly + New_date.20.1_scroll (scrollx, scrolly) } Function o_down (theobject ){ Object = theobject While (object. Filters. Alpha. Opacity> 60 ){ Object. Filters. Alpha. Opacity + =-10} } Function o_up (theobject ){ Object = theobject While (object. Filters. Alpha. Opacity <100 ){ Object. Filters. Alpha. Opacity + = 10} } Function wback (){ If (new_date.history.length = 0) {window. History. Back ()} Else {new_date.history.back ()} } </SCRIPT> Then add "class =" opacity "onmousedown = movover (); movstar (-3, 2) onmouseout = movover (); o_up (this) to the code of the up arrow image) onmouseover = movstar (-); o_down (this) onmouseup = movover (); movstar (-) alt = "you can scroll up quickly without clicking "". As follows: The cursor controls the code for Scrolling up the text. When the mouse moves to the up.gif image, the text will scroll up, and pressing the arrow will speed up the scroll up. The method for creating a downward arrow is the same as that for creating an image. Add "class =" opacity "onmousedown = movover (); movstar () onmouseout = movover (); o_up (this) onmouseover = movstar () to the Code ); o_down (this) onmouseup = movover (); movstar () alt = "you can scroll down quickly without clicking "". As follows: Add the following code to the area where the text is to be displayed: <IFRAME border = 0 frameborder = 0 framespacing = 0 Height = 120 marginheight = 0 marginwidth = 0 name = new_date noresize scrolling = No src = "iframe.htm" width = 200 vspale = "0"> </iframe> Connect a page named iframe.htm. Height = 120 width0000200controls the display area of the iframe.htm page on the current page. Edit the iframe.htm file and put the content you want to update.