function affiche_image(src_,titre_)
{
	titre_t=titre_.split("__");
	for(i=0;i<titre_t.length;i++){
		titre_=titre_.replace("__"," ");	
	}
	src_t=src_.split("__");
	for(i=0;i<src_t.length;i++){
		src_=src_.replace("__"," ");	
	}
	document.getElementById("titre_").innerHTML=titre_;
	document.images["image"].src=src_;
	document.images["image"].title=titre_;
}

var offsetfrommouse=[15,25]; //image x,y offsets from cursor position in pixels. Enter 0,0 for no offset
var displayduration=0; //duration in seconds image should remain visible. 0 for always.

var defaultimageheight = 100;	// maximum image size.
var defaultimagewidth = 100;	// maximum image size.

var timer;

function gettrailobj(){
if (document.getElementById)
return document.getElementById("pos").style
}

function gettrailobjnostyle(){
if (document.getElementById)
return document.getElementById("pos")
}


function truebody(){
return (!window.opera && document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}


function hidetrail(){	
	gettrailobj().display= "none";
	document.onmousemove="";
	gettrailobj().left="-500px";
	clearTimeout(timer);
}
var w;
var h;
var i;
function showtrail(imagename,title,width,height){
	
	if(imagename.indexOf("defaut.png")!=-1)return false;
	i = imagename;
	t = title;
	w = width;
	h = height;
	//alert(i);
	timer = setTimeout('show("'+i+'",t,w,h);',200);
}



function show(imagename,title,width,height){
    var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth - offsetfrommouse[0];
	var docheight=document.all? Math.min(truebody().scrollHeight, truebody().clientHeight) : Math.min(window.innerHeight);

	if( (navigator.userAgent.indexOf("Konqueror")==-1  || navigator.userAgent.indexOf("Firefox")!=-1 || (navigator.userAgent.indexOf("Opera")==-1 && navigator.appVersion.indexOf("MSIE")!=-1)) && (docwidth>350 && docheight>300)) {
		( width == 0 ) ? width = defaultimagewidth: '';
		( height == 0 ) ? height = defaultimageheight: '';
		width+=30;
		height+=55;
		defaultimageheight = height;
		defaultimagewidth = width;
		document.onmousemove=followmouse; 

		if(title!='description_'){
		newHTML = '<div class="border_preview" style="width:'+ width +'px;height:'+ height +'px"><div id="loader_container"><div id="loader"><div align="center">Chargement...</div><div id="loader_bg"><div id="progress"> </div></div></div></div>';
    	newHTML += '<div class="preview_temp_load"><img onload="javascript:remove_loading();" src="' + imagename + '" border="0" width="'+(width-4)+'px" height="'+(height-4)+'px" ></div>';
		newHTML += '</div>'; 
		}else{
					width-=30;
					height-=55;
				newHTML='<div class="text_preview" style="width:'+ width +'px;height:auto;">' + unescape(imagename) + '</div>';
		}
		
		if(navigator.userAgent.indexOf("MSIE")!=-1 && navigator.userAgent.indexOf("Opera")==-1 ){
			newHTML +='';
		}		

		gettrailobjnostyle().innerHTML = newHTML;
		gettrailobj().display="block";
	}
}

function followmouse(e){

	var xcoord=offsetfrommouse[0];
	var ycoord=offsetfrommouse[1];

	var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth-15;
	var docheight=document.all? Math.min(truebody().scrollHeight, truebody().clientHeight) : Math.min(window.innerHeight);

	if (typeof e != "undefined"){
		if (docwidth - e.pageX < defaultimagewidth + 2*offsetfrommouse[0]){
			xcoord = e.pageX - xcoord - defaultimagewidth; // Move to the left side of the cursor
		} else {
			xcoord += e.pageX;
		}
		if (docheight - e.pageY < defaultimageheight + 2*offsetfrommouse[1]){
			ycoord += e.pageY - Math.max(0,(2*offsetfrommouse[1] + defaultimageheight + e.pageY - docheight - truebody().scrollTop));
		} else {
			ycoord += e.pageY;
		}

	} else if (typeof window.event != "undefined"){
		if (docwidth - event.clientX < defaultimagewidth + 2*offsetfrommouse[0]){
			xcoord = event.clientX + truebody().scrollLeft - xcoord - defaultimagewidth; // Move to the left side of the cursor
		} else {
			xcoord += truebody().scrollLeft+event.clientX;
		}
		if (docheight - event.clientY < (defaultimageheight + 2*offsetfrommouse[1])){
			ycoord += event.clientY + truebody().scrollTop - Math.max(0,(2*offsetfrommouse[1] + defaultimageheight + event.clientY - docheight));
		} else {
			ycoord += truebody().scrollTop + event.clientY;
		}
	}
	gettrailobj().left=xcoord+"px";
	gettrailobj().top=ycoord+"px";

}

var t_id = setInterval(animate,20);
var pos=0;
var dir=2;
var len=0;

function animate()
{
var elem = document.getElementById('progress');
if(elem != null) {
if (pos==0) len += dir;
if (len>32 || pos>79) pos += dir;
if (pos>79) len -= dir;
if (pos>79 && len==0) pos=0;
elem.style.left = pos;
elem.style.width = len;
}
}

function remove_loading() {
this.clearInterval(t_id);
var targelem = document.getElementById('loader_container');
targelem.style.display='none';
targelem.style.visibility='hidden';
var t_id = setInterval(animate,60);
}
var nombre=0;
var nomId='bar';
array_position=new Array();

function getArray(){
		for(i=1;i<=nombre;i++){
			array_position[i]= document.getElementById(nomId+i).offsetTop;
		}
}


function getScrollXY() {
  var scrOfX = 0, scrOfY = 0;
  if( typeof( window.pageYOffset ) == 'number' ) {
    //m
    scrOfY = window.pageYOffset;
    scrOfX = window.pageXOffset;
  } else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
    //d
    scrOfY = document.body.scrollTop;
    scrOfX = document.body.scrollLeft;
  } else if( document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
    //ie
    scrOfY = document.documentElement.scrollTop;
    scrOfX = document.documentElement.scrollLeft;
  }
  return [ scrOfX, scrOfY ];
}
function change()
	{	//alert(array_position.length);
		if(array_position.length==0){
			getArray();
		}
			
			
		Y=getScrollXY();
		x=Y[1];
		
		for(i=nombre;i>=1;i--){
			if(x>array_position[i])
			{				
				//document.getElementById(nomId+i).style.top = (x-array_position[i])+"px";
				document.getElementById(nomId+i).style.position = "fixed";
				document.getElementById(nomId+i).style.top = "0px";
				break;
			}
		}
		
		for(j=1;j<=nombre;j++){
			if(i==j)continue;
			document.getElementById(nomId+j).style.position = "";
			document.getElementById(nomId+j).style.top = 0+"px";
		}
	} 
	window.onscroll = change