<!--
var speed=20;
var offset=2;
var delay=5000;
var cur = 0;
var roll_interval;
var pasue_timeout;
function roll(){
	now_pos = roll_layerA.scrollTop;
	roll_layerA.scrollTop+=offset;
	if (now_pos==roll_layerA.scrollTop){
		pasue('stop');
	}
}
function stop_roll(){
	window.clearInterval(roll_interval);
}
function start_roll(){
	roll_layerA.scrollTop = 0;
	roll_interval = window.setInterval('roll()',speed);
}
function text_switch(){
	roll_layerA.innerHTML=hot_price[cur].innerHTML;
	if (++cur==hot_price.length){
		cur=0;
	}
	roll_layerA.innerHTML+=hot_price[cur].innerHTML;
}
function pasue(act){
	if (act=='stop'){
		stop_roll();
		pasue('timeout');
	}else if(act=='timeout'){
		pasue_timeout = window.setTimeout("pasue('switch');",delay);
	}else if(act=='switch'){
		text_switch();
		start_roll();
	}
}
function start(){
	text_switch();
	cur=0;
	pasue("timeout");
}
start();
//-->