function changeInputType(nid, oType) {
	
	var oldObject = document.getElementById(nid);
	var parent = oldObject.parentNode;	
	
	var newObject = oldObject.cloneNode(true);
	newObject.type = oType;
	newObject.onfocus= null;
	
	parent.replaceChild(newObject,oldObject);
	
	setTimeout(function(){
		document.getElementById(nid).focus();
	}, 50 );

  return newObject;
}