var detect = navigator.userAgent.toLowerCase();
var OS,browser,version,total,thestring;

if (checkIt('konqueror'))
{
	browser = "Konqueror";
	OS = "Linux";
}
else if (checkIt('safari')) browser = "Safari"
else if (checkIt('omniweb')) browser = "OmniWeb"
else if (checkIt('opera')) browser = "Opera"
else if (checkIt('webtv')) browser = "WebTV";
else if (checkIt('icab')) browser = "iCab"
else if (checkIt('msie')) browser = "Internet Explorer"
else if (!checkIt('compatible'))
{
	browser = "Netscape Navigator"
	version = detect.charAt(8);
}
else browser = "An unknown browser";

if (!version) version = detect.charAt(place + thestring.length);

if (!OS)
{
	if (checkIt('linux')) OS = "Linux";
	else if (checkIt('x11')) OS = "Unix";
	else if (checkIt('mac')) OS = "Mac"
	else if (checkIt('win')) OS = "Windows"
	else OS = "an unknown operating system";
}

function checkIt(string)
{
	place = detect.indexOf(string) + 1;
	thestring = string;
	return place;
}

	
var vis = new Array();
var memo_obj = new Array();

function findObj_test_forcer(n, forcer) { 
        var p,i,x;

        // Voir si on n'a pas deja memoriser cet element		
        if (memo_obj[n] && !forcer) {
                return memo_obj[n];
        }
        
        d = document; 
        if((p = n.indexOf("?"))>0 && parent.frames.length) {
                d = parent.frames[n.substring(p+1)].document; 
                n = n.substring(0,p);
        }
        if(!(x = d[n]) && d.all) {
                x = d.all[n]; 
        }
        for (i = 0; !x && i<d.forms.length; i++) {
                x = d.forms[i][n];
        }
        for(i=0; !x && d.layers && i<d.layers.length; i++) x = findObj(n,d.layers[i].document);
        if(!x && document.getElementById) x = document.getElementById(n); 
        
        // Memoriser l'element
        memo_obj[n] = x;
        
        return x;
}

function findObj(n) { 
        return findObj_test_forcer(n, false);
}
// findObj sans memorisation de l'objet - avec Ajax, les elements se deplacent dans DOM
function findObj_forcer(n) { 
        return findObj_test_forcer(n, true);
}


// Cacher/Montrer
function hide_obj(obj) {
        element = findObj(obj);
        if(element) {
                if (element.style.visibility != "hidden") element.style.visibility = "hidden";
        }
}
function show_obj(obj) {
        element = findObj(obj);
        if(element) {
                if (element.style.visibility != "visible") element.style.visibility = "visible";
        }
}


var time = new Array();
var valeur = new Array();

function slide_style_etape (obj, st, val, fin, diff) {

                layer = findObj(obj);
                if (!layer) return;
                
                
                val = parseInt(val);
                diff = parseInt(diff);
                fin = parseInt(fin);
                
        val = val + diff;
        if (OS == "Mac") val = val + diff;


        if (diff > 0) {
                        if (val > fin) val = fin;
                } else {
                        if (val < fin) val = fin;
                }
                valeur[obj+"-"+st] = val;
                                        
                if (st != "opacity") val = val + "px";
                
                
                if (st == "opacity") {
                        layer.style.opacity = (val / 101);
                    layer.style.MozOpacity = (val / 100);
                    layer.style.KhtmlOpacity = (val / 100);
                    layer.style.filter = "alpha(opacity=" + val + ")";


                        if (val != 0) { layer.style.visibility = "visible"; }
                        else { layer.style.visibility = "hidden"; }
                
                } else {
                        layer.style[st] = val;
                }
                
                if (val != fin) time[obj+"-"+st] = setTimeout("slide_style_etape('"+obj+"','"+st+"','"+val+"','"+fin+"','"+diff+"')", 100);
                        
}


function slide_style (obj, st, fin, diff, delai) {

        layer = findObj_forcer(obj);
        if (!layer) return;
        
        if (valeur[obj+"-"+st]) {
                val = valeur[obj+"-"+st];
        }
        else { 
                val = eval("layer.style."+st);
        }
        val = parseInt(val);
        
        clearTimeout (time[obj+"-"+st]);
        
        if (delai > 0) time[obj+"-"+st] = setTimeout("slide_style_etape('"+obj+"','"+st+"','"+val+"','"+fin+"','"+diff+"')", delai);
        else slide_style_etape (obj, st, val, fin, diff) ;

}


// Cacher ou montrer
function show_hide_obj(obj) {
        element = findObj(obj);
        if(element) {
                if (element.style.display != "none") { element.style.display = "none"; return; }
                if (element.style.display != "block") { element.style.display = "block"; return; }
        }
}


// gestion menu en bas à droite
var actif='';
function slide_general(id,action) {
        if (actif == id) {
                if (action=='out') slide_style('slide_'+id,'height','19','9','0');
                else slide_style('slide_'+id,'height','0','-9','0');
        }
        else {
                if (action=='over') slide_style('slide_'+id,'height','19','9','0');
                else slide_style('slide_'+id,'height','0','-9','0');
        }
}

function show_hide_general(id) {
        show_hide_obj('ul_'+actif);
        if (actif == id) { actif=''; }
        else {
                show_hide_obj('ul_'+id);
                slide_general(actif,'over');
                actif=id;
        }
}


// gestion menu article dans rubrique
var article_actif='0';
function show_hide_article(id) {
        slide_style('logo_'+article_actif,'opacity','0','-20','0');
        article_actif=id;
        slide_style('logo_'+article_actif,'opacity','100','20','0');
}


// gestion images powervac
var powervac_actif='';
function show_hide_powervac(id,hauteur) {
        if (powervac_actif != '') slide_style(powervac_actif,'height','0','-80','0');
        powervac_actif=id;
        slide_style(powervac_actif,'height',hauteur,'80','0');
}


// gestion legendes
var legende_actif='';
function show_hide_legende(id) {
        if (legende_actif != '') slide_style(legende_actif,'opacity','0','-20','0');
        legende_actif=id;
        slide_style(legende_actif,'opacity','85','20','0');
}


// gestion comparatifs duramax
var duramax_actif='';
function show_hide_duramax(id) {
        if (duramax_actif != '') show_hide_obj(duramax_actif);
        duramax_actif=id;
        show_hide_obj(duramax_actif);
}

var nombre_images=0;
function show_next_image(numero) {
        show_hide_obj('image_'+numero);
        if (numero==nombre_images) { show_hide_obj('image_1'); }
        else {
                numero = numero + 1;
                show_hide_obj('image_'+numero);
        }
}
function show_previous_image(numero) {
        show_hide_obj('image_'+numero);
        if (numero==1) { show_hide_obj('image_'+nombre_images); }
        else {
                numero = numero - 1;
                show_hide_obj('image_'+numero);
        }
}


// gestion réseau commercial
var region_actif='';
function show_hide_region(id) {
        if (region_actif != '') {
                slide_style('contact_'+region_actif,'opacity','0','-20','0');
                slide_style('region_contact_'+region_actif,'opacity','0','-20','0');
        }
        region_actif=id;
        slide_style('contact_'+region_actif,'opacity','100','20','0');
        slide_style('region_contact_'+region_actif,'opacity','100','20','0');
}