var iscrollamount=1;
function scrollup(o,h,c){
	//o 滚动对象ID, h单行高度，像素, c实际行数
	var i = 1; //每次滚动高度，像素
	var obj=document.getElementById(o);
	obj.innerHTML += obj.innerHTML;
	window.setTimeout("run('"+o+"',"+h+","+c+","+i+")", 5000 );
}
function run(o,h,c,i) {
	var obj=document.getElementById(o);
	if (iscrollamount==1) obj.scrollTop += 1;
	if ( obj.scrollTop == c * h + 18 ) obj.scrollTop = 0;
	if ( obj.scrollTop % h == 0 ) {
		window.setTimeout("run('"+o+"',"+h+","+c+","+i+")", 5000 );//每行轮动后的停留时间
	} else {
		window.setTimeout("run('"+o+"',"+h+","+c+","+i+")", 40 );//滚动速度
	}
}