文字滚动
function scroll(obj) { /*往左*/ var tmp = (obj.scrollLeft)++; //当滚动条到达右边顶端时 if (obj.scrollLeft == tmp) { obj.innerHTML += obj.innerHTML; } //当滚动条滚动了初始内容的宽度时滚动条回到最左端 if (obj.scrollLeft >= obj.firstChild.offsetWidth) { obj.scrollLeft = 0; } /*往上*/ //var tmp = (obj.scrollTop)++; //if (obj.scrollTop == tmp) { // obj.innerHTML += obj.innerHTML; //} //if (obj.scrollTop >= obj.firstChild.offsetWidth) { // obj.scrollTop = 0; //} } var _timer = setInterval("scroll(document.getElementById('scrollobj'))", 20); function _stop() { if (_timer != null) { clearInterval(_timer); } } function _start() { _timer = setInterval("_scroll(document.getElementById('scrollobj'))", 20); }
//公告字幕滚动
function scrollTxt($obj){
$obj.each(function(){
var $this = $(this);
var $span = $this.find("span");
if($this.width() < $span.width())
{
$(this).append($span.clone());
timer=setInterval(function(){mar($this,$span)},30);
}
})
}
function mar($this,$span){
if($span.width() <= $this.scrollLeft()){
$this.scrollLeft($this.scrollLeft()-$span.width());
}else{
$this.scrollLeft($this.scrollLeft()+1);
}
}