function showColour(theLinkPath, theImagePath, theSelect) {
 // alert(theImagePath);
  document.getElementById("hero").src=theImagePath;
  document.getElementById("link").href = theLinkPath;
  document.getElementById("linktext").href = theLinkPath;
  if (theSelect != 'no') {
  document.getElementById("myColourID").selectedIndex = theSelect
}
  return true;

}

function dropdownColour(s, productID) {
 var theFilePath = s.options[s.selectedIndex].value;
 var theFilePath = 'ref_'+theFilePath

 var myobj = document.getElementById(theFilePath)
// alert(myobj.value);

 if (myobj.value != 'none') {
   var heroImage = 'images/x_images/products/'+productID+'/med_'+myobj.value
   var imageLink = 'images/x_images/products/'+productID+'/large_'+myobj.value
  } else {
   var heroImage = 'images/x_images/products/med_notAvail.jpg'
   var imageLink = 'images/x_images/products/med_notAvail.jpg'
  }
 showColour(imageLink,heroImage,'no')
 
}