JavaScript实现滚动栏效果的方法_PHP教程

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* {

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;

}

<script></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.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);

};

}

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