self.onError=null;
currentX = currentY = 0;  
whichIt = null;
lastScrollX = 0;
lastScrollY = 0;
NS = (document.layers) ? 1 : 0;
IE = (document.all) ? 1: 0;
if (!IE && !NS) {
    NS = (document.getElementById) ? 1 : 0;
}

function scrollMenu() {
    if (IE) {
        diffY = document.body.scrollTop;
        diffX = document.body.scrollLeft;
    }
    if (NS) {
        diffY = self.pageYOffset;
        diffX = self.pageXOffset;
    }
    if (diffY != lastScrollY) {
        percent = .1 * (diffY - lastScrollY);
        if (percent > 0)
            percent = Math.ceil(percent);
        else
            percent = Math.floor(percent);
        if (IE)
            document.all.slide.style.pixelTop += percent;
        if (NS)
            document.slide.top += percent; 
        lastScrollY = lastScrollY + percent;
    }
    if (diffX != lastScrollX) {
        percent = .1 * (diffX - lastScrollX);
        if (percent > 0)
            percent = Math.ceil(percent);
        else
            percent = Math.floor(percent);
        if (IE)
            document.all.slide.style.pixelLeft += percent;
        if (NS)
            document.slide.left += percent;
        lastScrollX = lastScrollX + percent;
    }
}

function checkFocus(x,y) { 
    var totalY, totalX;
    floatx = document.slide.pageX;
    floaty = document.slide.pageY;
    floatwidth = document.slide.clip.width;
    floatheight = document.slide.clip.height;
    if (20 == 0)
        totalY = floatheight;
    else
        totalY = 20;
    if (0 == 0)
        totalX = floatwidth;
    else
        totalX = 0;
    if ((x > floatx && x < (floatx+totalX)) && (y > floaty && y < (floaty+totalY)))
        return true;
    else
        return false;
}

function grabIt(e) {
    if (IE) {
        whichIt = event.srcElement;
        while (whichIt.id.indexOf("slide") == -1) {
            whichIt = whichIt.parentElement;
            if (whichIt == null) {
                return true;
            }
        }
        whichIt.style.pixelLeft = whichIt.offsetLeft;
        whichIt.style.pixelTop = whichIt.offsetTop;
        currentX = (event.clientX + document.body.scrollLeft);
        currentY = (event.clientY + document.body.scrollTop);
        if (20 == 0)
            totalY = whichIt.style.pixelHeight;
        else
            totalY = 20;
        if (0 == 0)
            totalX = whichIt.style.pixelWidth;
        else
            totalX = 0;
        if (!(event.clientX > whichIt.offsetLeft && event.clientX < whichIt.offsetLeft + totalX) || 
                        !(currentY > whichIt.offsetTop && currentY < whichIt.offsetTop + totalY))
            whichIt = null;
    } else { 
        window.captureEvents(Event.MOUSEMOVE);
        if (checkFocus (e.pageX,e.pageY)) { 
            whichIt = document.slide;
            FloatTouchedX = e.pageX-document.slide.pageX;
            FloatTouchedY = e.pageY-document.slide.pageY;
        } 
    }
    return true;
}

function moveIt(e) {
    if (whichIt == null) {
        return false;
    }
    if (IE) {
        newX = (event.clientX + document.body.scrollLeft);
        newY = (event.clientY + document.body.scrollTop);
        distanceX = (newX - currentX);
        distanceY = (newY - currentY);
        currentX = newX;
        currentY = newY;
        whichIt.style.pixelLeft += distanceX;
        whichIt.style.pixelTop += distanceY;
        if (whichIt.style.pixelTop < document.body.scrollTop)
            whichIt.style.pixelTop = document.body.scrollTop;
        if (whichIt.style.pixelLeft < document.body.scrollLeft)
            whichIt.style.pixelLeft = document.body.scrollLeft;
        if (whichIt.style.pixelLeft > document.body.offsetWidth - document.body.scrollLeft - whichIt.style.pixelWidth - 20)
            whichIt.style.pixelLeft = document.body.offsetWidth - whichIt.style.pixelWidth - 20;
        if (whichIt.style.pixelTop > document.body.offsetHeight + document.body.scrollTop - whichIt.style.pixelHeight - 5)
            whichIt.style.pixelTop = document.body.offsetHeight + document.body.scrollTop - whichIt.style.pixelHeight - 5;
            event.returnValue = false;
    } else { 
        whichIt.moveTo(e.pageX-FloatTouchedX,e.pageY-FloatTouchedY);
        if (whichIt.left < 0+self.pageXOffset)
            whichIt.left = 0+self.pageXOffset;
        if (whichIt.top < 0+self.pageYOffset)
            whichIt.top = 0+self.pageYOffset;
        if ( (whichIt.left + whichIt.clip.width) >= (window.innerWidth+self.pageXOffset-17))
            whichIt.left = ((window.innerWidth+self.pageXOffset)-whichIt.clip.width)-17;
        if ( (whichIt.top + whichIt.clip.height) >= (window.innerHeight+self.pageYOffset-17))
            whichIt.top = ((window.innerHeight+self.pageYOffset)-whichIt.clip.height)-17;
        return false;
    }
    return false;
}

function dropIt() {
    whichIt = null;
    if (NS)
        window.releaseEvents (Event.MOUSEMOVE);
        return true;
}

if (NS) {
    window.captureEvents(Event.MOUSEUP|Event.MOUSEDOWN);
    window.onmousedown = grabIt;
    window.onmousemove = moveIt;
    window.onmouseup = dropIt;
}

if (IE) {
    document.onmousedown = grabIt;
    document.onmousemove = moveIt;
    document.onmouseup = dropIt;
}

if (NS || IE)
    action = window.setInterval("scrollMenu()",1);