You Can find here many types of tutorials and example of javascript as follows :
Form Effects
Popup Calendars (for entering date into a form):
Browser Window
Image Effects
Image Slideshows
Image Galleries and Viewers
Text Animations
Smooth Marquee
HTML CODE
div id="vmarquee" style="position: absolute;>Your Text...div close>
JAVASCRIPT CODE
var delayb4scroll=2000 //Specify initial delay before marquee starts to scroll on page (2000=2 seconds)var marqueespeed=1 //Specify marquee scroll speed (larger is faster 1-10)var pauseit=1 //Pause marquee onMousever (0=no. 1=yes)?
////NO NEED TO EDIT BELOW THIS LINE////////////
var copyspeed=marqueespeedvar pausespeed=(pauseit==0)? copyspeed: 0var actualheight=''
function scrollmarquee(){if (parseInt(cross_marquee.style.top)>(actualheight*(-1)+8))cross_marquee.style.top=parseInt(cross_marquee.style.top)-copyspeed+"px"elsecross_marquee.style.top=parseInt(marqueeheight)+8+"px"}
function initializemarquee(){cross_marquee=document.getElementById("vmarquee")cross_marquee.style.top=0marqueeheight=document.getElementById("marqueecontainer").offsetHeightactualheight=cross_marquee.offsetHeightif (window.opera navigator.userAgent.indexOf("Netscape/7")!=-1){ //if Opera or Netscape 7x, add scrollbars to scroll and exitcross_marquee.style.height=marqueeheight+"px"cross_marquee.style.overflow="scroll"return}setTimeout('lefttime=setInterval("scrollmarquee()",30)', delayb4scroll)}
if (window.addEventListener)window.addEventListener("load", initializemarquee, false)else if (window.attachEvent)window.attachEvent("onload", initializemarquee)else if (document.getElementById)window.onload=initializemarquee