function ToggleImgSrc() {
    var img = event.srcElement;
    var src = img.src;
    var len = src.length;
    var ext = src.lastIndexOf(".");
    var n = (event.type == "mouseover") ? 1 : 0;

    img.src = src.substring(0, ext - 1) + n + src.substr(ext);
}

function ToggleBoxStyle() {
    var box = event.srcElement;
    box.style.borderColor = (event.type == "mouseover") ? "Orange" : "Blue";

    box.style.borderStyle = (event.type == "mouseover") ? "solid" : "dashed";
}

function SetCookie(sName, sValue)
{
  document.cookie = sName + "=" + escape(sValue) + "; path=/; expires=Fri, 31 Dec 2099 23:59:59 GMT;";
}

function GetCookie(sName)
{
  var aCookie = document.cookie.split("; ");
  for (var i=0; i < aCookie.length; i++)
  {
    var aCrumb = aCookie[i].split("=");
    if (sName == aCrumb[0]) 
      return unescape(aCrumb[1]);
  }

  return null;
}

function DelCookie(sName)
{
    document.cookie = sName + "=; path=/; expires=Fri, 21 Dec 1976 04:31:24 GMT;";
}