var oMarquee = document.getElementById("mq"); //滚动对象
var iLineHeight = 89; //单行高度，像素
var iLineCount = document.getElementById("mq").getElementsByTagName("table").length;  //实际行数
var iScrollAmount = 1; //每次滚动高度，像素
function run()
{
    oMarquee.scrollTop += iScrollAmount;
    if ( oMarquee.scrollTop == iLineCount * iLineHeight )
       oMarquee.scrollTop = 0;
    if ( oMarquee.scrollTop % iLineHeight == 0 )
	{
      window.setTimeout( "run()", 2000 );
    } else {
      window.setTimeout( "run()", 10 );
    }
}
oMarquee.innerHTML += oMarquee.innerHTML;
window.setTimeout( "run()", 2000 );