function setVat(vat) {
  var url;
  url = window.location.pathname+"?incl_tax="+vat;
  window.location.href = url;
}

function openWin( windowURL, windowName, windowFeatures ) {
	return window.open( windowURL, windowName, windowFeatures ) ;
}

function changeImage(picid,switchto)
{
  if(document.getElementById(picid)) {
    document.getElementById(picid).src=switchto;
  }
}