var floatingMenuId = 'floatdiv';   
var floatingMenu =   
{   
    targetX: 0,   
    targetY: 0,   
  
    hasInner: typeof(window.innerWidth) == 'number',   
    hasElement: typeof(document.documentElement) == 'object'  
        && typeof(document.documentElement.clientWidth) == 'number',   
  
    menu:   
        document.getElementById   
        ? document.getElementById(floatingMenuId)   
        : document.all   
          ? document.all[floatingMenuId]   
          : document.layers[floatingMenuId]   
};   
  
floatingMenu.move = function ()   
{   
    floatingMenu.menu.style.left = floatingMenu.nextX + 'px';   
    floatingMenu.menu.style.top = floatingMenu.nextY + 'px';   
}   
  
floatingMenu.computeShifts = function ()   
{   
    var de = document.documentElement;   
  
    floatingMenu.shiftX =     
        floatingMenu.hasInner     
        ? pageXOffset     
        : floatingMenu.hasElement     
          ? de.scrollLeft     
          : document.body.scrollLeft;     
    if (floatingMenu.targetX < 0)   
    {   
        floatingMenu.shiftX +=   
            floatingMenu.hasElement   
            ? de.clientWidth   
            : document.body.clientWidth;   
    }   
  
    floatingMenu.shiftY =    
        floatingMenu.hasInner   
        ? pageYOffset   
        : floatingMenu.hasElement   
          ? de.scrollTop   
          : document.body.scrollTop;   
    if (floatingMenu.targetY < 0)   
    {   
        if (floatingMenu.hasElement && floatingMenu.hasInner)   
        {   
            // Handle Opera 8 problems   
            floatingMenu.shiftY +=   
                de.clientHeight > window.innerHeight   
                ? window.innerHeight   
                : de.clientHeight   
        }   
        else  
        {   
            floatingMenu.shiftY +=   
                floatingMenu.hasElement   
                ? de.clientHeight   
                : document.body.clientHeight;   
        }   
    }   
}   
  
floatingMenu.calculateCornerX = function()   
{   
    if (floatingMenu.targetX != 'center')   
        return floatingMenu.shiftX + floatingMenu.targetX;   
  
    var width = parseInt(floatingMenu.menu.offsetWidth);   
  
    var cornerX =   
        floatingMenu.hasElement   
        ? (floatingMenu.hasInner   
           ? pageXOffset   
           : document.documentElement.scrollLeft) +    
          (document.documentElement.clientWidth - width)/2   
        : document.body.scrollLeft +    
          (document.body.clientWidth - width)/2;   
    return cornerX;   
};   
  
floatingMenu.calculateCornerY = function()   
{   
    if (floatingMenu.targetY != 'center')   
        return floatingMenu.shiftY + floatingMenu.targetY;   
  
    var height = parseInt(floatingMenu.menu.offsetHeight);   
  
    // Handle Opera 8 problems   
    var clientHeight =    
        floatingMenu.hasElement && floatingMenu.hasInner   
        && document.documentElement.clientHeight    
            > window.innerHeight   
        ? window.innerHeight   
        : document.documentElement.clientHeight   
  
    var cornerY =   
        floatingMenu.hasElement   
        ? (floatingMenu.hasInner     
           ? pageYOffset   
           : document.documentElement.scrollTop) +    
          (clientHeight - height)/2   
        : document.body.scrollTop +    
          (document.body.clientHeight - height)/2;   
    return cornerY;   
};   
  
floatingMenu.doFloat = function()   
{   
    var stepX, stepY;   
  
    floatingMenu.computeShifts();   
  
    var cornerX = floatingMenu.calculateCornerX();   
  
    var stepX = (cornerX - floatingMenu.nextX) * .07;   
    if (Math.abs(stepX) < .5)   
    {   
        stepX = cornerX - floatingMenu.nextX;   
    }   
  
    var cornerY = floatingMenu.calculateCornerY();   
  
    var stepY = (cornerY - floatingMenu.nextY) * .07;   
    if (Math.abs(stepY) < .5)   
    {   
        stepY = cornerY - floatingMenu.nextY;   
    }   
  
    if (Math.abs(stepX) > 0 ||   
        Math.abs(stepY) > 0)   
    {   
        floatingMenu.nextX += stepX;   
        floatingMenu.nextY += stepY;   
        floatingMenu.move();   
    }   
  
    setTimeout('floatingMenu.doFloat()', 1)