// function switchDiv()
//  this function takes the id of a div
//  and calls the other functions required
//  to show that div
//
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 hideAll()
//  hides a bunch of divs
//
function hideAll()
{
   changeObjectVisibility("aide_jf1","hidden");
   changeObjectVisibility("aide_jf2","hidden");
   changeObjectVisibility("aide_vnais1","hidden");
   changeObjectVisibility("aide_vnais2","hidden");
   changeObjectVisibility("aide_pays1","hidden");
   changeObjectVisibility("aide_pays2","hidden");
   changeObjectVisibility("aide_fum1","hidden");
   changeObjectVisibility("aide_fum2","hidden");
   changeObjectVisibility("aide_acti1","hidden");
   changeObjectVisibility("aide_acti2","hidden");
   changeObjectVisibility("aide_vemp1","hidden");
   changeObjectVisibility("aide_vemp2","hidden");
   changeObjectVisibility("aide_ctra1","hidden");
   changeObjectVisibility("aide_ctrap1","hidden");
   changeObjectVisibility("aide_vempp1","hidden");
   changeObjectVisibility("aide_vempp2","hidden");
   changeObjectVisibility("aide_ctra2","hidden");
   changeObjectVisibility("aide_ctrap2","hidden");
   changeObjectVisibility("aide_loyer","hidden");
   changeObjectVisibility("aide_mail","hidden");
   changeObjectVisibility("aide_phone","hidden");
   changeObjectVisibility("aide_rfonc","hidden");
   changeObjectVisibility("aide_atdoui","hidden");
   changeObjectVisibility("aide_atdnon","hidden");
   changeObjectVisibility("aide_autrev","hidden");
   changeObjectVisibility("aide_vgar","hidden");
   changeObjectVisibility("aide_vnot","hidden");
   changeObjectVisibility("aide_ville","hidden");
   changeObjectVisibility("ventil_dos","hidden");
}

// Copyright © 2000 by Apple Computer, Inc., All Rights Reserved.
//
// You may incorporate this Apple sample code into your own code
// without restriction. This Apple sample code has been provided "AS IS"
// and the responsibility for its operation is yours. You may redistribute
// this code, but you are not permitted to redistribute it as
// "Apple sample code" after having made changes.
//
// ************************
// layer utility routines *
// ************************

function getStyleObject(objectId) {
    // cross-browser function to get an object's style object given its id
    if(document.getElementById && document.getElementById(objectId)) {
	// W3C DOM
	return document.getElementById(objectId).style;
    } else if (document.all && document.all(objectId)) {
	// MSIE 4 DOM
	return document.all(objectId).style;
    } else if (document.layers && document.layers[objectId]) {
	// NN 4 DOM.. note: this won't find nested layers
	return document.layers[objectId];
    } else {
	return false;
    }
} // getStyleObject

function changeObjectVisibility(objectId, newVisibility) {
    // get a reference to the cross-browser style object and make sure the object exists
    var styleObject = getStyleObject(objectId);
    if(styleObject) {
	styleObject.visibility = newVisibility;
	return true;
    } else {
	// we couldn't find the object, so we can't change its visibility
	return false;
    }
} // changeObjectVisibility

function moveObject(objectId, newXCoordinate, newYCoordinate) {
    // get a reference to the cross-browser style object and make sure the object exists
    var styleObject = getStyleObject(objectId);
    if(styleObject) {
	styleObject.left = newXCoordinate;
	styleObject.top = newYCoordinate;
	return true;
    } else {
	// we couldn't find the object, so we can't very well move it
	return false;
    }
} // moveObject