var def_int="";
var def_interval="";
var fin=600;
var size=120;
var current_folder="../gal//fresque";
var fresque_img="5";

window.onload = function() {
setFooter();
if(document.getElementById('container_fresque'))
{
curent_pos_fresque=create_fresque(fin, size, fresque_img);
document.getElementById("hidde_page").onclick = function() { imgzoom('off', '', '', 0); }

document.getElementById("zoom_aff").onmouseover = function() { document.getElementById('zoom_aff_pre').style.display='block'; document.getElementById('zoom_aff_sui').style.display='block'; }
document.getElementById("zoom_aff").onmouseout = function() { document.getElementById('zoom_aff_pre').style.display='none'; document.getElementById('zoom_aff_sui').style.display='none'; }

document.getElementById("zoom_close").onclick = function() { imgzoom('off', '', '', 0); }

document.getElementById("turn_left").onmouseover = function() { def_int=setInterval('curent_pos_fresque=defildroite(fin, size, fresque_img, curent_pos_fresque)', 10); }
document.getElementById("turn_left").onmouseout = function() { javascript:clearInterval(def_int); }

document.getElementById("turn_right").onmouseover = function() { def_int=setInterval('curent_pos_fresque=defilgauche(fin, size, fresque_img, curent_pos_fresque)', 10); }
document.getElementById("turn_right").onmouseout = function() { javascript:clearInterval(def_int); }
}
}

function setFooter() {
			if (document.getElementById) {
				if(document.getElementById('right').offsetHeight>document.getElementById('middle_body').offsetHeight)
					{document.getElementById('middle').style.height=document.getElementById('right').offsetHeight+'px';}
			}
		}

var da = (document.all) ? 1 : 0;
var pr = (window.print) ? 1 : 0;
var mac = (navigator.userAgent.indexOf("Mac") != -1);
function printPage()
	{
	if (pr) // NS4, IE5
	   window.print()
	  else if (da && !mac) // IE4 (Windows)
	   vbPrintPage()
	  else // other browsers
	   alert("Sorry, your browser doesn't support this feature.");
	 }

if (da && !pr && !mac) with (document)
	 {
	  writeln('<OBJECT ID="WB" WIDTH="0" HEIGHT="0" CLASSID="clsid:8856F961-340A-11D0-A96B-00C04FD705A2"></OBJECT>');
	  writeln('<' + 'SCRIPT LANGUAGE="VBScript">');
	  writeln('Sub window_onunload');
	  writeln('  On Error Resume Next');
	  writeln('  Set WB = nothing');
	  writeln('End Sub');
	  writeln('Sub vbPrintPage');
	  writeln('  OLECMDID_PRINT = 6');
	  writeln('  OLECMDEXECOPT_DONTPROMPTUSER = 2');
	  writeln('  OLECMDEXECOPT_PROMPTUSER = 1');
	  writeln('  On Error Resume Next');
	  writeln('  WB.ExecWB OLECMDID_PRINT, OLECMDEXECOPT_DONTPROMPTUSER');
	  writeln('End Sub');
	  writeln('<' + '/SCRIPT>');
	}
	
function create_fresque(fin, size, qtite)
	{
	document.getElementById("container_fresque").innerHTML = "<div id=\"hidde_page\"></div><div id=\"zoom_aff\"><img src=\"../gal/fresque/close.png\" alt=\"Close\" id=\"zoom_close\" /><div id=\"zoom_aff_pre\"></div><div id=\"zoom_aff_sui\"></div><div id=\"zoom_aff_img\"></div></div>"
			+"<div id=\"container_fresque\">"
					+"<img src=\"../gal/fresque/left.png\" alt=\"\" id=\"turn_left\" />"
					+"<img src=\"../gal/fresque/right.png\" alt=\"\" id=\"turn_right\" />"
					+"<div id=\"fresque\"></div>"
			"</div>";
	document.getElementById("fresque").innerHTML = "<div id=\"fresque_conteneur\" style=\"position:absolute; top:0px; left:" + ((-1*size)+12) + "px; min-width:" + size*(qtite) + ";\"></div>"
	var i=qtite;
	var w=0;
	while(w<fin+size*2)
		{
		if(i>qtite)
			{
			i=1;
			}
		document.getElementById("fresque_conteneur").innerHTML += "<img src=\"../script/miniature.php?url="+current_folder+"/"+i+".png\" alt=\"\" id=\"photo_"+i+"\" onClick=\"imgzoom('on', '"+current_folder+"/"+i+".png', 'photo_"+i+"', 1);\" />";
		i++;
		w = w+size;
		}
	var curent_pos_fresque=qtite;

	//fonction de préchargement des images non encor chargés
	while(i<=qtite)
		{
		image=new Image();
		image.src="gal/"+current_folder+"/" + i + ".gif";
		i++;
		}

	return curent_pos_fresque;
	}

function defilgauche(fin, size, qtite, curent_pos_fresque)
	{
	var pos=parseFloat(document.getElementById("fresque_conteneur").style.left);
	if(pos<(-1*size*2))
		{
		curent_pos_fresque++;
		if(curent_pos_fresque>qtite)
			{
			curent_pos_fresque=1;
			}

		var i=curent_pos_fresque;
		var w=0;
	
		document.getElementById("fresque_conteneur").innerHTML ="";
		document.getElementById("fresque_conteneur").style.left = -1*size-2 + 'px';

		while(w<fin+size*2)
			{
			if(i>qtite)
				{
				i=1;
				}
			document.getElementById("fresque_conteneur").innerHTML += "<img src=\"../script/miniature.php?url="+current_folder+"/"+i+".png\" alt=\"\" id=\"photo_"+i+"\" onClick=\"imgzoom('on', '"+current_folder+"/"+i+".png', 'photo_"+i+"', 1);\" />";
			i++;
			w = w+size;
			}
		}
	else
		{
		document.getElementById("fresque_conteneur").style.left = pos-1 + 'px';
		}

	return curent_pos_fresque;
	}

function defildroite(fin, size, qtite, curent_pos_fresque)
	{
	var pos=parseFloat(document.getElementById("fresque_conteneur").style.left);
	if(pos>-1)
		{
		curent_pos_fresque--;
		if(curent_pos_fresque<1)
			{
			curent_pos_fresque=qtite;
			}

		var i=curent_pos_fresque;
		var w=0;
	
		document.getElementById("fresque_conteneur").innerHTML ="";
		document.getElementById("fresque_conteneur").style.left =-1*size+1 + 'px';

		while(w<fin+size*2)
			{
			if(i>qtite)
				{
				i=1;
				}
			document.getElementById("fresque_conteneur").innerHTML += "<img src=\"../script/miniature.php?url="+current_folder+"/"+i+".png\" alt=\"\" id=\"photo_"+i+"\" onClick=\"imgzoom('on', '"+current_folder+"/"+i+".png', 'photo_"+i+"', 1);\" />";
			i++;
			w = w+size;
			}
		}
	else
		{
		document.getElementById("fresque_conteneur").style.left = pos+1 + 'px';
		}

	return curent_pos_fresque;
	}

/*	ZOOM	*/

function imgzoom(etat, uri, id, i)
	{
	document.getElementById("zoom_aff_img").innerHTML="";
		if(document.body)
			{
			var larg=(document.body.offsetWidth);
			var haut=(document.body.offsetHeight);
			}
		else
			{
			var larg=(window.innerWidth);
			var haut=(window.innerHeight);
			}
		document.getElementById("hidde_page").style.width=larg+"px";
		document.getElementById("hidde_page").style.height=haut+"px";
	if(etat=="on")
		{
		if(document.getElementById('anim_video')){document.getElementById('anim_video').style.display='none';}
	if(i==0){i=document.getElementById(id).src;}
		//recuperation de la taille de la fenêtre du navigateur.
		document.getElementById("hidde_page").style.display="block";

		var xhr_object = null;

		if(window.XMLHttpRequest) // Firefox
		   xhr_object = new XMLHttpRequest();
		else if(window.ActiveXObject) // Internet Explorer
		   xhr_object = new ActiveXObject("Microsoft.XMLHTTP");
		else { // XMLHttpRequest non supporté par le navigateur
		   alert("Votre navigateur ne supporte pas les objets XMLHTTPRequest...");
		   return;
		}

		xhr_object.open("POST", "../script/zoom.php", true);

		xhr_object.onreadystatechange = function() {
		if(xhr_object.readyState == 4)
			{
			eval(xhr_object.responseText);
			}
			}

		xhr_object.setRequestHeader("Content-type", "application/x-www-form-urlencoded"); 
		var data = "uri="+uri+"&i="+i+"&id="+id;
		xhr_object.send(data);
		}
	else
		{
		if(document.getElementById('anim_video')){document.getElementById('anim_video').style.display='block';}
		document.getElementById("hidde_page").style.display="none";
		document.getElementById("zoom_aff").style.display="none";
		}
	}