javascript

Jquery single line text scroll up effect example


<body>
<div id="title" style="width:100%;height:40px;"> Look at the intermittent scrolling text </div>

<div id="content" class="infocontent">
<div id="top" class="infolist">
<ul>
<li> CCTV 315 exposure :  China resources deeply "sea sand door" response clear and not clear </li>
<li> Yoshino home was exposed tableware is not disinfected   Bosideng and other cashmere sweaters do not contain cashmere </li>
<li> Wuxi police announced that "pregnant female police sudden misfortune" after the incident </li>
<li> Chinese day: the last ferry   Horizon: "done at home" </li>
</ul>
</div>
<div id="bottom" class="infolist"></div>
</div>
<div id="foot"></div>
</body>

.infolist{width:400px;matgin:0;}
.infolist ul{margin:0;padding:0;}
.infolist ul li{list-style:none;height:26px;line-height:26px;}
.infocontent{width:400px;height:26px;overflow:hidden;border:1px solid #666666;}

var interval=1000;//The time interval between the two rolls
var stepsize=26;//The length of a roll must be a multiple of the height of the row, so as not to break the line
var objInterval=null;

$(document).ready( function(){
//Fill the bottom with the contents of the top
$("#bottom").html($("#top").html());

//Binds mouse events to the displayed area
$("#content").bind("mouseover",function(){StopScroll();});
$("#content").bind("mouseout",function(){StartScroll();});

//Start timer
StartScroll();
});

//Start the timer and start rolling
function StartScroll(){
objInterval=setInterval("verticalloop()",interval);
}

//Clear the timer and stop scrolling
function StopScroll(){
window.clearInterval(objInterval);
}

//Control rolling
function verticalloop(){
//Determine whether the upper contents are all moved out of the display area
//If so, start over. Otherwise, keep moving up
if($("#content").scrollTop()>=$("#top").outerHeight()){
$("#content").scrollTop($("#content").scrollTop()-$("#top").outerHeight());
}
//Use jquery to create scrolling animations
$("#content").animate(
{"scrollTop" : $("#content").scrollTop()+stepsize +"px"},600,function(){
//Here is the scrollTop used to display the scroll area, please delete it in practice
// $("#foot").html("scrollTop:"+$("#content").scrollTop());
});
}