/*
 * Javascript used for showing and hiding form elements for location selection.
 */
function showHidePostalCode() {
   if (document.form1.country.value == 47 || document.form1.country.value == 6)
   {
      showAll();
   }
   else
   {
      hideAll();
   }
}

function switchDiv(div_id)
{
  var style_sheet = getStyleObject(div_id);
  if (style_sheet)
  {
    hideAll();
    changeObjectVisibility(div_id, "visible");
  }
  else 
  {
    alert("sorry, this only works in browsers that do Dynamic HTML");
  }
}

function getStyleObject(objectId) {
  // checkW3C DOM, then MSIE 4, then NN 4.
  //
  if(document.getElementById && document.getElementById(objectId)) {
	return document.getElementById(objectId).style;
   }
   else if (document.all && document.all(objectId)) {  
	return document.all(objectId).style;
   } 
   else if (document.layers && document.layers[objectId]) { 
	return document.layers[objectId];
   } else {
	return false;
   }
}

function changeObjectVisibility(objectId, newVisibility) {
    // first get the object's stylesheet
    var styleObject = getStyleObject(objectId);

    // then if we find a stylesheet, set its visibility
    // as requested
    //
    if (styleObject) {
	styleObject.visibility = newVisibility;
	return true;
    } else {
	return false;
    }
}
function changeObjectDisplay(objectId, newDisplay) {
    // first get the object's stylesheet
    var styleObject = getStyleObject(objectId);

    // then if we find a stylesheet, set its visibility
    // as requested
    //
    if (styleObject) {
	styleObject.display = newDisplay;
	return true;
    } else {
	return false;
    }
}

function hideAll()
{
   //alert("in hideAll()");
   changeObjectVisibility("postalCodeLabel","hidden");
   changeObjectVisibility("postalCode","hidden");
   changeObjectVisibility("states","visible");
   changeObjectVisibility("cities","visible");
   changeObjectDisplay("postalCodeLabel","none");
   changeObjectDisplay("postalCode","none");
   changeObjectDisplay("states","inline");
   changeObjectDisplay("cities","inline");
}
function showAll()
{
   //alert("in showAll()");
   changeObjectVisibility("postalCodeLabel","visible");
   changeObjectVisibility("postalCode","visible");
   changeObjectVisibility("states","hidden");
   changeObjectVisibility("cities","hidden");
   changeObjectDisplay("postalCodeLabel","inline");
   changeObjectDisplay("postalCode","inline");
   changeObjectDisplay("states","none");
   changeObjectDisplay("cities","none");
}