var ie=document.all;
var vPlayTrans=true;
var lasttimer;

function switchArrow(obj, col)
{
  if (col == "white")
    obj.innerHTML = obj.innerHTML.replace("greyarrow", "whitearrow");
  else
    obj.innerHTML = obj.innerHTML.replace("whitearrow", "greyarrow");
}
function showMenu(obj)
{
 // if (typeof hidetimer != 'undefined' && lasttimer == obj)
  //  clearTimeout(hidetimer);
//  if (ie && vPlayTrans)
//  {
//    document.getElementById(obj).filters(0).apply();
//    document.getElementById(obj).style.visibility='visible';
//    document.getElementById(obj).filters(0).play();
//  }
//  else
//  {
    document.getElementById(obj).style.visibility='visible';
//  }
}
function hideMenu(obj)
 {
// if (ie)
//    hidetimer=setTimeout("document.getElementById('" + obj + "').filters(0).apply();document.getElementById('" + obj + "').style.visibility='hidden';document.getElementById('" + obj + "').filters(0).play();", 1);
 //else
    document.getElementById(obj).style.visibility='hidden';
    //lasttimer=obj;
 }
function backToTop() {

    var x1 = x2 = x3 = 0;

    var y1 = y2 = y3 = 0;

 

    if (document.documentElement) {

        x1 = document.documentElement.scrollLeft || 0;

        y1 = document.documentElement.scrollTop || 0;

    }

 

    if (document.body) {

        x2 = document.body.scrollLeft || 0;

        y2 = document.body.scrollTop || 0;

    }

 

    x3 = window.scrollX || 0;

    y3 = window.scrollY || 0;

 

    var x = Math.max(x1, Math.max(x2, x3));

    var y = Math.max(y1, Math.max(y2, y3));

 

    window.scrollTo(Math.floor(x / 2), Math.floor(y / 2));

 

    if (x > 0 || y > 0) {

        window.setTimeout("backToTop()", 25);

    }
}