JavaScript method to achieve scroll bar effect, javascript scrolling

JavaScript method to achieve scroll bar effect, javascript scrolling_PHP tutorial

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Release： 2016-07-13 09:56:02

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JavaScript method to achieve scroll bar effect, javascript scrolling

This article describes the example of JavaScript method to achieve scroll bar effect. Share it with everyone for your reference. The details are as follows:

<!DOCTYPE html> 
<html> 
<head lang="en"> 
 <meta charset="UTF-8"> 
 <title></title> 
 <style> 
  * { 
   margin: 0; 
   padding: 0; 
  } 
  #div1 ul{ 
   position: absolute; 
   left: 0px; 
   top: 0px; 
  } 
  #div1 ul li img { 
   width: 187px; 
   height: 125px; 
  } 
  #div1 ul li{ 
   float: left; 
   width: 187px; 
   height: 125px; 
   list-style: none; 
  } 
  #div1{ 
   width: 748px; 
   height: 125px; 
   position: relative; 
   background-color: chartreuse; 
   overflow: hidden; 
   float: left; 
  } 
  #body{ 
   width: 948px; 
   height: 125px; 
   margin: 100px auto; 
 
  } 
  #body #leftDiv{ 
   float: left; 
   width: 100px; 
   height: 100px; 
  } 
  #body #rightDiv{ 
   float: left; 
   width: 100px; 
   height: 100px; 
  } 
   
  #body #leftDiv button{ 
   background-image: url("image/left.PNG"); 
   width: 100px; 
   height: 100px; 
  } 
  #body #leftDiv button img{ 
   width: 100px; 
   height: 100px; 
  } 
  #body #rightDiv button img{ 
   width: 100px; 
   height: 100px; 
  } 
 </style> 
 <script> 
  window.onload=function(){ 
   var oDiv=document.getElementById('div1'); 
   var oUl=oDiv.getElementsByTagName('ul')[0]; 
   var oLi=oUl.getElementsByTagName('li'); 
   var oLeft=document.getElementById('leftDiv'); 
   var oright=document.getElementById('rightDiv'); 
   oUl.innerHTML+=oUl.innerHTML; 
   oUl.style.width=oLi[0].offsetWidth*oLi.length+'px'; 
   var speed=-2; 
   function move(){ 
    if (oUl.offsetLeft<-oUl.offsetWidth/2){ 
     oUl.style.left='0'; 
    }else if(oUl.offsetLeft>0){ 
     oUl.style.left=-oUl.offsetWidth/2+'px'; 
    } 
    oUl.style.left=oUl.offsetLeft+speed+'px'; 
   }; 
   var timer=setInterval(move,30); 
   oLeft.onclick=function(){ 
    speed=-2; 
   }; 
   oright.onclick= function () { 
    speed=2; 
   }; 
   oUl.onmouseover=function(){ 
    clearInterval(timer); 
   }; 
   oUl.onmouseout=function(){ 
    timer=setInterval(move,30); 
   }; 
  } 
 </script> 
</head> 
<body> 
<div id="body"> 
 <div id="leftDiv"><button><img src="image/left.PNG"/></button></div> 
 <div id="div1"> 
  <ul> 
   <li><img src="image/1.JPG"/></li> 
   <li><img src="image/2.JPG"/></li> 
   <li><img src="image/3.JPG"/></li> 
   <li><img src="image/4.JPG"/></li> 
  </ul> 
 </div> 
 <div id="rightDiv"><button><img src="image/right.PNG"/></button></div> 
</div> 
</body> 
</html>

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I hope this article will be helpful to everyone’s JavaScript programming design.