var viewportwidth;
var viewportheight;

function ReseatGalleryLinks()
{
    var elem;
    var e = document.getElementsByTagName("*");
    for (i=0; i<e.length; i++)
    {
        if (e[i].id.indexOf("HomeFooter") >= 0)
        {
            elem = document.getElementById(e[i].id);
        }
    }
    
    GetViewportSize();
    
    var ScrollTop = document.body.scrollTop;
    if (ScrollTop == 0)
    {
        if (window.pageYOffset)
            ScrollTop = window.pageYOffset;
        else
            ScrollTop = (document.body.parentElement) ? document.body.parentElement.scrollTop : 0;
    }
    
    var newYpos = findPosY(elem);
    
    if (findPosY(elem) > (ScrollTop + viewportheight - 120)) // height of div (72) + 48 pixels
    {
        newYpos = (viewportheight - 120);
    }
    else if (findPosY(elem) < (ScrollTop + viewportheight - 120))
    {
        newYpos = ScrollTop + viewportheight - 120;
    }
    
    if (newYpos > 626)
    {
        newYpos = "626";
    }
    else if (newYpos < 240)
    {
        newYpos = 240;
    }
    
    elem.style.top = newYpos + "px";
    

    setTimeout("ReseatGalleryLinks();", 25);
}

function findPosX(obj)
{
    var curleft = 0;
    if(obj.offsetParent)
        while(1) 
        {
          curleft += obj.offsetLeft;
          if(!obj.offsetParent)
            break;
          obj = obj.offsetParent;
        }
    else if(obj.x)
        curleft += obj.x;
    return curleft;
}

function findPosY(obj)
{
    var curtop = 0;
    if(obj.offsetParent)
        while(1)
        {
          curtop += obj.offsetTop;
          if(!obj.offsetParent)
            break;
          obj = obj.offsetParent;
        }
    else if(obj.y)
        curtop += obj.y;
    return curtop;
}

function setPosY(obj, ypos)
{
    if (obj.offsetParent) 
    {
        obj.offsetTop = ypos;
    }
    else if (obj.y)
    {
        obj.y = ypos;
    }
}


function GetViewportSize()
{
 // the more standards compliant browsers (mozilla/netscape/opera/IE7) use window.innerWidth and window.innerHeight
 
 if (typeof window.innerWidth != 'undefined')
 {
      viewportwidth = window.innerWidth,
      viewportheight = window.innerHeight
 }
 
// IE6 in standards compliant mode (i.e. with a valid doctype as the first line in the document)

 else if (typeof document.documentElement != 'undefined'
     && typeof document.documentElement.clientWidth !=
     'undefined' && document.documentElement.clientWidth != 0)
 {
       viewportwidth = document.documentElement.clientWidth,
       viewportheight = document.documentElement.clientHeight
 }
 
 // older versions of IE
 
 else
 {
       viewportwidth = document.getElementsByTagName('body')[0].clientWidth,
       viewportheight = document.getElementsByTagName('body')[0].clientHeight
 }

}