JavaScript Made Easy: Free JavaScripts Tutorials Example Code

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JavaScript Basics

Inserting Javascript

Complete Tutorial

Advance DHTML Tutorial



DHTML Script - PageScroll		[View Sample]

This script is similar to the textscroll script except that this one has more scrollable layers, so when you change layer it looks like you load a new page inside the scroller.


Insert into <HEAD>
<style type="text/css"> #divControl{position:absolute; width:250; font-family:arial; left:120; top:190; font-size:10pt; visibility:hidden} #divCont{position:absolute; top:250; left:120; clip:rect(0,250,150,0); height:150; width:250} .clScroll{position:absolute; top:0; font-size:10pt; left:0; font-family:arial; visibility:hidden} </style> <script type="text/javascript" language="JavaScript"> /****************************************************************************** Copyright (C) 1999 Thomas Brattli This script is made by and copyrighted to Thomas Brattli at www.bratta.com Visit for more great scripts. This may be used freely as long as this msg is intact! I will also appriciate any links you could give me. ****************************************************************************/ //Default browsercheck, added to all scripts! function checkBrowser(){ this.ver=navigator.appVersion this.dom=document.getElementById?1:0 this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom)?1:0; this.ie4=(document.all && !this.dom)?1:0; this.ns5=(this.dom && parseInt(this.ver) >= 5) ?1:0; this.ns4=(document.layers && !this.dom)?1:0; this.bw=(this.ie5 \|\| this.ie4 \|\| this.ns4 \|\| this.ns5) return this } bw=new checkBrowser() /***************************************************************************** These are the variables you have to set: *****************************************************************************/ //The speed of the timeout between each scroll. timSpeed=50 //The height of the container (change this when it scrolls to much or to little) contHeight=100 /***************************************************************************** This is the object constructor function, which applies methods and properties to the Cross-browser layer object *****************************************************************************/ function makeScrollObj(obj,nest){ nest=(!nest) ? '':'document.'+nest+'.' this.el=bw.dom?document.getElementById(obj):bw.ie4?document.all[obj]:bw.ns4?eval(nest+'document.'+obj):0; this.css=bw.dom?document.getElementById(obj).style:bw.ie4?document.all[obj].style:bw.ns4?eval(nest+'document.'+obj):0; this.height=bw.ns4?this.css.document.height:this.el.offsetHeight this.top=b_gettop return this } //Getting the top for the top method function b_gettop(){ var gleft=(bw.ns4 \|\| bw.ns5) ? eval(this.css.top):eval(this.css.pixelTop); return gleft; } //Variables var scrollTim; var active=0; /***************************************************************************** The scroll function. Checks what way to scroll and checks if the layer is not already on top or bottom. *****************************************************************************/ function scroll(speed){ clearTimeout(scrollTim) way=speed>0?1:0 if((!way && oScroll[active].top()>-oScroll[active].height+contHeight) \|\| (oScroll[active].top()<0 && way)){ oScroll[active].css.top=oScroll[active].top()+speed scrollTim=setTimeout("scroll("+speed+")",timSpeed) } } //Clears the timeout so the scroll stops, this is called onmouseout. function noScroll(){ clearTimeout(scrollTim) } /***************************************************************************** Changes the active layer. Hides the one that's visible and shows the "new" one. Also set's the new layers top to 0 so it starts at top. *****************************************************************************/ function changeActive(num){ oScroll[active].css.visibility='hidden' active=num oScroll[active].css.top=0 oScroll[active].css.visibility='visible' } /***************************************************************************** Initilizes the page, makes a oScroll Array and calls the object constructor. Here you can add as many scrollObjects as you want *****************************************************************************/ function scrollInit(){ oScroll=new Array() oScroll[0]=new makeScrollObj('divScroll1','divCont') oScroll[1]=new makeScrollObj('divScroll2','divCont') oScroll[2]=new makeScrollObj('divScroll3','divCont') oScroll[3]=new makeScrollObj('divScroll4','divCont') oScroll[0].css.visibility='visible' oControl=new makeScrollObj('divControl') oControl.css.visibility='visible' } /***************************************************************************** Executes the scrollInit function on pageload. *******************************************************************************/ onload=scrollInit; </script>

Insert into <BODY>
<div id="divControl"> <a href="#" onclick="changeActive(0)">Page 1</a> <a href="#" onclick="changeActive(1)">Page 2</a> <a href="#" onclick="changeActive(2)">Page 3</a> <a href="#" onclick="changeActive(3)">Page 4</a> <br><br> <a href="#" onmouseover="scroll(5)" onmouseout="noScroll()">up</a> <a href="#" onmouseover="scroll(-5)" onmouseout="noScroll()">down</a> </div> <div id="divCont"> <div id="divScroll1" class="clScroll"> This is "page" 1, here you place some content. You should place more content then this or it won't scroll..blablablabl<br> <br>text text dummy texttext text dummy texttext text dummy text<br> <br>text text dummy text text text dummy text text text dummy text <br> </div> <div id="divScroll2" class="clScroll"> This is "page" 2........... <br>text textdummy texttext text dummy texttext text dummy text<br> <br>text text dummy text text text dummy text text text dummy text <br> text text dummy texttext text dummy texttext text dummy text<br> <br>text text dummy text text text dummy text text text dummy text <br> <br>text textdummy texttext text dummy texttext text dummy text<br> <br>text text dummy text text text dummy text text text dummy text <br> text text dummy texttext text dummy texttext text dummy text<br> <br>text text dummy text text text dummy text text text dummy text <br> </div> <div id="divScroll3" class="clScroll"> This is "page" 3...........(can't scroll this one, to little content) <br> </div> <div id="divScroll4" class="clScroll"> Page 4 text text dummy texttext text dummy texttext text dummy text<br> <br>ext text dummy texttext text dummy texttext text dummy text<br> <br>text text dummy texttext text dummy texttext text dummy text<br> <br>text text dummy texttext text dummy texttext text dummy text<br> <br>text text dummy texttext text dummy texttext text dummy text<br> </div> </div>

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