图片已上传,请到我的资源部去下载,不用积分,——无缝滚动图片http://download.csdn.net/detail/qq_34137397/9665933
</head>
<body>
<div class="control"><label id="chk_pause"><input type="checkbox" checked="checked">间隔停顿</label><select id="pause_time"><option value="100">短</option><option value="1000" selected="selected">中</option><option value="3000">长</option></select>滚动速度:<select id="sel_speed"><option value="2">慢</option><option value="5">中</option><option value="10">快</option></select>
</div><div class="roll" id="roll"><a href="javascript:void(0);" class="btn_left"></a><a href="javascript:void(0);" class="btn_right"></a><div class="wrap"><ul><li><a href="http://www.zhinengshe.com/"><img src="images/1.jpg" /></a></li><li><a href="http://www.zhinengshe.com/"><img src="images/2.jpg" /></a></li><li><a href="http://www.zhinengshe.com/"><img src="images/3.jpg" /></a></li><li><a href="http://www.zhinengshe.com/"><img src="images/4.jpg" /></a></li></ul></div>
</div>
</body>
</html>
CSS代码
* { padding: 0; margin: 0; }
li { list-style: none; }
img { border: 0; }.roll { width: 880px; height: 108px; margin: 50px auto 0; position: relative; }
.btn_left { display: block; width: 68px; height: 68px; background: url(images/btn.jpg) no-repeat -70px -69px; position: absolute; top: 20px; left: 1px; z-index: 1; }
.btn_left:hover { background: url(images/btn.jpg) no-repeat -70px 0; }
.btn_right { display: block; width: 68px; height: 68px; background: url(images/btn.jpg) no-repeat 1px -69px; position: absolute; top: 20px; right: 0; z-index: 1; }
.btn_right:hover { background: url(images/btn.jpg) no-repeat 1px 0; }
.roll .wrap { width: 728px; height: 108px; margin: 0 auto; position: relative; overflow: hidden; }
.roll ul { position: absolute; top: 0; left: 0; }
.roll li { float: left; width: 182px; height: 108px; text-align: center; }
.roll li a:hover { position: relative; top: 2px; }.control { border-bottom: 1px solid #ccc; background: #eee; text-align: center; padding: 20px 0; }
js代码
var g_bMoveLeft=true;
var g_oTimer=null;
var g_oTimerOut=null;var g_bPause=true;
var g_iPauseTime=1000;
var g_iSpeed=2;window.οnlοad=function ()
{var oDiv=document.getElementById('roll');var oUl=oDiv.getElementsByTagName('ul')[0];var aLi=oUl.getElementsByTagName('li');var aA=oDiv.getElementsByTagName('a');var oChk=document.getElementById('chk_pause');var oPauseTime=document.getElementById('pause_time');var oSpeed=document.getElementById('sel_speed');var i=0;var str=oUl.innerHTML+oUl.innerHTML;oUl.innerHTML=str;oUl.style.width=aLi[0].offsetWidth*aLi.length+'px';for(i=0;i<aLi.length;i++){aLi[i].οnmοuseοver=function (){stopMove();};aLi[i].οnmοuseοut=function (){startMove(g_bMoveLeft);};}aA[0].οnmοuseοver=function (){startMove(true);};aA[1].οnmοuseοver=function (){startMove(false);};startMove(true);oChk.οnclick=function (){g_bPause=oChk.getElementsByTagName('input')[0].checked;};oSpeed.οnchange=function (){g_iSpeed=parseInt(this.value);};oPauseTime.οnchange=function (){g_iPauseTime=parseInt(this.value);};
};function startMove(bLeft)
{g_bMoveLeft=bLeft;if(g_oTimer){clearInterval(g_oTimer);}g_oTimer=setInterval(doMove, 30);
}function stopMove()
{clearInterval(g_oTimer);g_oTimer=null;
}function doMove()
{var oDiv=document.getElementById('roll');var oUl=oDiv.getElementsByTagName('ul')[0];var aLi=oUl.getElementsByTagName('li');var l=oUl.offsetLeft;if(g_bMoveLeft){l-=g_iSpeed;if(l<=-oUl.offsetWidth/2){l+=oUl.offsetWidth/2;}}else{l+=g_iSpeed;if(l>=0){l-=oUl.offsetWidth/2;}}if(g_bPause){if(Math.abs(l-Math.round(l/aLi[0].offsetWidth)*aLi[0].offsetWidth)<Math.ceil(g_iSpeed/2)){stopMove();g_oTimerOut=setTimeout(function (){startMove(g_bMoveLeft);}, g_iPauseTime);l=Math.round(l/aLi[0].offsetWidth)*aLi[0].offsetWidth;}}oUl.style.left=l+'px';
}