// JavaScript Document
function skip () { this.blur(); }
function switchable (field)
{
	if (field.disabled)
		enableTextField(field);
	else
		disableTextField(field);
}
function disableTextField (field) {
  if (document.all || document.getElementById) 
    field.disabled = true;
  else {
    field.oldOnFocus = field.onfocus;
    field.onfocus = skip;
  }
}
function enableTextField (field) {
  if (document.all || document.getElementById)
    field.disabled = false;
  else {
    field.onfocus = field.oldOnFocus;
  }
}