// -------------------------------
// -- 		FONCTIONS GLOBALES
// -------------------------------
var versionMinor = parseFloat(navigator.appVersion);
var versionMajor = parseInt(versionMinor);

var IE = document.all && !window.opera && versionMajor < 7;
var IE7 = document.all && !window.opera && versionMajor >= 7;
var OP = window.opera;
var FF = document.getElementById;
var NS = document.layers;

// renvoie l'element DOM
function get_item(name,opener){
	if (IE){
		return (opener)?window.opener.document.all[name]:document.all[name];
	}else if (FF){
		return (opener)?window.opener.document.getElementById(name):document.getElementById(name);
	}else if(NS){
		return (opener)?window.opener.document.layers[name]:document.layers[name];
	}
}
function change_display(name,value,opener){
	if (IE){ // IE
		element = (opener == true)?window.opener.document.all[name].style:document.all[name].style;
	}else if(FF){ // FF
		element = (opener == true)?window.opener.document.getElementById(name).style:document.getElementById(name).style;
	}else if(NS){ // NETSCAPE
		element = (opener == true)?window.opener.document.layers[name]:document.layers[name];
	}
	element.display = value;
}

function reverse_display(name,opener){
	element = get_item(name);
	if(!element)
	{
		return false;
	}
	var display = (element.style.display != 'block')?'block':'none';
	change_display(name,display,opener);
}
/********************************************************************************/
/*
/*							DISPLAY CONTENT : MOVED In langfiles.js
/*
/********************************************************************************
function change_display_by_icon(element,element_id,content_more,content_less,display_special)
{
element.className=(element.className=="icon_less")?"icon_more":"icon_less";
if(content_more || content_less)
{
element.innerHTML=(element.className=="icon_less")?content_less:content_more;
}
if(!display_special)
{
display_special = 'block';
}
document.getElementById(element_id).style.display = ((element.className=="icon_more")?'none':display_special);
}
/********************************************************************************/
/*
/*							TOOLTIP
/*
/********************************************************************************/
var current_tooltip;
/**
* Show a tooltip
*
* @param dom current_tooltip : (span, p,...)
* @param string : content of the tooltip
* @param string : content of the title
*/
function show_tooltip(caller,content,content_title)
{
	var current_tooltip = get_item('tooltip');
	if(!current_tooltip)
	{
		var current_tooltip = document.createElement('div');
		current_tooltip.setAttribute('id','tooltip');
		document.body.appendChild(current_tooltip);
	}
	current_tooltip.style.zIndex = 100;
	current_tooltip.style.position = 'absolute';

	if(content_title)
	{
		content = '<p class="header">'+content_title+'</p><p>'+content+'</p>';
	}
	else
	{
		content = '<p>'+content+'</p>';
	}
	current_tooltip.innerHTML = content;
	current_tooltip.style.visibility = 'visible';
	// append action to DOM
	caller.onmousemove = move_tooltip;
	caller.onmouseout = function()
	{
		current_tooltip.style.visibility="hidden";
	}
	caller.title='';
}
/**
* Move the current_tooltip in document area
*/
var offsetxpoint=-60 //Customize x offset of tooltip
var offsetypoint=20 //Customize y offset of tooltip
var real_body = (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body;
real_body = (document.documentElement)? document.documentElement : document.body;
function move_tooltip(e){

	var curX=(!IE)?e.pageX : event.clientX+real_body.scrollLeft;
	var curY=(!IE)?e.pageY : event.clientY+real_body.scrollTop;

	//Find out how close the mouse is to the corner of the window
	var rightedge=IE&&!window.opera? real_body.clientWidth-event.clientX-offsetxpoint : window.innerWidth-e.clientX-offsetxpoint-20
	var bottomedge=IE&&!window.opera? real_body.clientHeight-event.clientY-offsetypoint : window.innerHeight-e.clientY-offsetypoint-20

	var leftedge=(offsetxpoint<0)? offsetxpoint*(-1) : -1000
	current_tooltip = get_item('tooltip');
	//if the horizontal distance isn't enough to accomodate the width of the context menu
	if (rightedge<current_tooltip.offsetWidth)
	//move the horizontal position of the menu to the left by it's width
	current_tooltip.style.left=IE? real_body.scrollLeft+event.clientX-current_tooltip.offsetWidth+"px" : window.pageXOffset+e.clientX-current_tooltip.offsetWidth+"px"
	else if (curX<leftedge)
	current_tooltip.style.left="5px"
	else
	//position the horizontal position of the menu where the mouse is positioned
	current_tooltip.style.left=curX+offsetxpoint+"px"

	//same concept with the vertical position
	if (bottomedge<current_tooltip.offsetHeight)
	current_tooltip.style.top=IE? real_body.scrollTop+event.clientY-current_tooltip.offsetHeight-offsetypoint+"px" : window.pageYOffset+e.clientY-current_tooltip.offsetHeight-offsetypoint+"px"
	else
	current_tooltip.style.top=curY+offsetypoint+"px"
}
/********************************************************************************/
/*							 POPUP
/********************************************************************************/
function popup(link,oWidth,oHeight,oName)
{
	if(oWidth > screen.width){oWidth = screen.width;}
	if(oHeight > screen.height){oHeight = screen.height;}
	var PosX = (screen.width-oWidth)/2;
	var PosY = (screen.height-oHeight)/2;
	var params = "width="+oWidth+", height="+oHeight+", top=" + (PosY) + ",left=" + (PosX);
	params += ('toolbar=0,menubars=0,location=no,scrollbars=1,directories=0,statubar=0,resizable=0');
	window.open(link,((!oName)?'popuped':'popuped'),params);
}
/********************************************************************************/
/*							 ADD SEARCH ENGINE
/********************************************************************************/
// Ajouter un moteur de recherche pour Firefox
function add_search_engine(engine,title,category){
	if (FF && (typeof window.sidebar == "object") && (typeof window.sidebar.addSearchEngine == "function"))  	{
		window.sidebar.addSearchEngine(
		engine+'_ff.src',
		engine+'.gif',
		title,
		category
		);
	}
	else if(IE7)
	{
		window.external.AddSearchProvider(engine+'_ie.src');
	}else
	{
		alert('Your browser do not support this utility');
	}
}

inter = '';		/* variable globale utilisée pour l'interval */
speed = 10;		/* vitesse de grossissement de la popup vitesse augmente quand speed diminue */
frequency = 10;	/* frequence de rafraichissement de la popup pdt le changement en ms */
L_txt_close = 'Clic to close this preview';
/**
* Affiche la popup au milieu de l'ecran a la taille passé en paramétre
*/
function showImage (event, finalWidth, finalHeight, image, img_width, img_height)
{
	if (document.getElementById('preview_block').firstChild) {
		for (var i=0; i < document.getElementById('preview_block').childNodes.length; i++)
		{
			document.getElementById('preview_block').removeChild(document.getElementById('preview_block').childNodes[i]);
		}
	}
	var mouseX = 0;
	var mouseY = 0;
	var vScroll = 0;
	var hScroll = 0;
	var inWidth = getWindowWidth();
	var inHeight = getWindowHeight();
	if (document.all)
	{
		mouseX = window.event.clientX + document.documentElement.scrollLeft;
		mouseY = window.event.clientY + document.documentElement.scrollTop;
		vScroll = document.documentElement.scrollTop;
		hScroll = document.documentElement.scrollLeft;
	}
	else
	{
		mouseX = event.clientX + window.scrollX;
		mouseY = event.clientY + window.scrollY;
		vScroll = window.scrollY;
		hScroll = window.scrollX;
	}


	var div = document.createElement('div');
	div.style.height = '0';
	div.style.width = '0';
	div.className = 'preview';
	div.style.position = 'absolute';
	div.style.top = mouseY+'px';
	div.style.left = mouseX+'px';
	div.style.zIndex = '1000';
	div.setAttribute('id', 'image');
	div.onclick = new Function ("document.getElementById('preview_block').removeChild(document.getElementById('preview_block').firstChild);window.clearInterval(inter);");

	var finalLeft = (inWidth - finalWidth) / 2;
	var finalTop  = (inHeight - finalHeight) / 2;
	finalTop += vScroll;
	var stepLeft = (finalLeft - mouseX)  / speed;
	var stepTop  = (finalTop - mouseY) / speed;
	var stepWidth = finalWidth / speed;
	var stepHeight = finalHeight / speed;

	document.getElementById('preview_block').appendChild(div);

	if (!img_width)
	{
		img_width = 840;
	}
	if (!img_height)
	{
		img_height = 600;
	}

	inter = window.setInterval('moveAndResize('+stepLeft+','+stepTop+','+stepWidth+','+stepHeight+','+finalHeight+',"'+image+'",' + img_width + ',' + img_height + ')', frequency);

	return false;
}

function moveAndResize (stepLeft, stepTop, stepWidth, stepHeight, finalHeight, image, img_width, img_height)
{
	if (!document.getElementById('preview_block') || !document.getElementById('preview_block').firstChild)
	{
		window.clearInterval(inter);
		return false;
	}

	var div = document.getElementById('preview_block').firstChild;
	var height = div.style.height.match(/[0-9\.]*/);
	var width  = div.style.width.match(/[0-9\.]*/);
	var top = div.style.top.match(/[0-9\.]*/);
	var left = div.style.left.match(/[0-9\.]*/);

	height = Number(height);
	width = Number(width);
	top = Number(top);
	left = Number(left);

	height += stepHeight;
	width  += stepWidth;
	top += stepTop;
	left += stepLeft;


	div.style.height = height + 'px';
	div.style.width = width + 'px';
	div.style.top = top + 'px';
	div.style.left = left + 'px';
	if (height >= finalHeight)
	{
		window.clearInterval(inter);
		var img = document.createElement('img');
		img.setAttribute('src', image);
		img.setAttribute('alt', L_txt_close);
		img.setAttribute('title', L_txt_close);
		img.setAttribute('width', img_width);
		img.setAttribute('height', img_height);
		img.style.cursor = 'pointer';
		div.appendChild(img);
		var p = document.createElement('p');
		//        p.appendChild(document.createTextNode(L_txt_close));
		p.style.cursor = 'pointer';
		div.appendChild (p);
	}
}


/**
* Fonction qui retourne la taille interieure de la fenetre
* Necessaire a cause d'IE
*/
function getWindowHeight() {

	var pageHeight =  window.innerHeight;
	pageHeight = (pageHeight)? pageHeight :document.documentElement.clientHeight;
	pageHeight = (pageHeight)? pageHeight: document.body.clientHeight;

	return pageHeight;

}
function getWindowWidth() {

	var pageWidth =  window.innerWidth;
	pageWidth = (pageWidth)? pageWidth :document.documentElement.clientWidth;
	pageWidth = (pageWidth)? pageWidth: document.body.clientWidth;

	return pageWidth;

}