//qswh's original and modifid by windy_sk <windy_sk@126.com> 20040120
function reportError(msg,url,line) {
    var str = "You have found an error as below: \n\n";
    str += "Err: " + msg + " on line: " + line;
    //alert(str);
    return true;
}
window.onerror = reportError;    
var obj_marquee = document.getElementById("marquee");
var repeat = null;
var marquee_spd = 50;
function marquee_init() {
    var obj_unit = obj_marquee.firstChild;
    var marquee_high = parseInt(obj_marquee.style.height);
    var marquee_wide = parseInt(obj_marquee.style.width);
    var unit_high = obj_unit.offsetHeight;
    var unit_wide = obj_unit.offsetWidth;
    var m = 0, n = 0, i = 0;
    var tmp = null;
    
    m = Math.ceil(marquee_wide / unit_wide);
    n = Math.ceil(marquee_high / unit_high);
    obj_unit.style.width = marquee_wide * (m+1);
    obj_unit.rows[0].cells[0].style.width = obj_marquee.style.width;
    
    for(i=0; i<m; i++) {
        tmp = obj_unit.rows[0].insertCell(-1);
        tmp.innerHTML = obj_unit.rows[0].cells[0].innerHTML;
        tmp.style.width = marquee_wide;
        tmp = null;
    }
    for(i=0; i<n; i++) {
        obj_marquee.appendChild(obj_unit.cloneNode(true));
    }
    return;
}
function marquee_show(direction) {
    switch(direction) {
        case "up":
            if(obj_marquee.scrollTop >= obj_marquee.children[1].offsetTop) {
                obj_marquee.scrollTop -= obj_marquee.firstChild.offsetHeight;
            } else {
                obj_marquee.scrollTop++;
            }
            break;
        case "down":
            if(obj_marquee.scrollTop <= 0) {
                obj_marquee.scrollTop += obj_marquee.firstChild.offsetHeight;
            } else {
                obj_marquee.scrollTop--;
            }
            break;
        case "left":
            if(obj_marquee.scrollLeft >= obj_marquee.firstChild.rows[0].cells[0].offsetWidth) {
                obj_marquee.scrollLeft -= obj_marquee.firstChild.rows[0].cells[0].offsetWidth;
            } else {
                obj_marquee.scrollLeft++;
            }
            break;
        case "right":
            if(obj_marquee.scrollLeft <= 0) {
                obj_marquee.scrollLeft += obj_marquee.firstChild.rows[0].cells[0].offsetWidth;
            } else {
                obj_marquee.scrollLeft--;
            }
            break;
        default:
            break;
    }
    return;
}
function marquee_doit() {
    var direction = "";
    direction = obj_marquee.getAttribute("direction");
    if(direction != null) marquee_show(direction);
    direction = obj_marquee.getAttribute("direction2");
    if(direction != null) marquee_show(direction);
    return;
}
marquee_init();
repeat = setInterval("marquee_doit()",marquee_spd);
marquee.onmouseover = function() {clearInterval(repeat);}
marquee.onmouseout = function() {repeat=setInterval("marquee_doit()",marquee_spd);}