function getInternetExplorerVersion()
// Returns the version of Internet Explorer or a -1
// (indicating the use of another browser).
{
  var rv = -1; // Return value assumes failure.
  if (navigator.appName == 'Microsoft Internet Explorer')
  {
    var ua = navigator.userAgent;
    var re  = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
    if (re.exec(ua) != null)
      rv = parseFloat( RegExp.$1 );
  }
  return rv;
}
function checkVersion(){
 
  var ver = getInternetExplorerVersion();
    if( ver <= 7.0 && ver >! -1) {
      msg = 'To get full experience on ower web.\n You should upgrade your copy of Internet Explorer.\nVisit:http://www.microsoft.com/windows/internet-explorer/worldwide-sites.aspx\n\nTil að fá all fítusa á síðu okkar.\nVinsamlegast uppfæra Internet Explorer þinn.\nHeimsæktu:http://www.microsoft.com/windows/internet-explorer/worldwide-sites.aspx';
  	  alert( msg );
  }
 }