/**********************************************************************************   
ScrollText 
*   Copyright (C) 2001 <a href="/dhtmlcentral/thomas_brattli.asp">Thomas Brattli</a>
*   This script was released at DHTMLCentral.com
*   Visit for more great scripts!
*   This may be used and changed freely as long as this msg is intact!
*   We will also appreciate any links you could give us.
*
*   Made by <a href="/dhtmlcentral/thomas_brattli.asp">Thomas Brattli</a> 
*********************************************************************************/

//detection de navigateurs
function lib_bwcheck(){ //Browsercheck (needed)
	this.ver=navigator.appVersion
	this.agent=navigator.userAgent
	this.dom=document.getElementById?1:0
	this.opera5=this.agent.indexOf("Opera 5")>-1
	this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom && !this.opera5)?1:0; 
	this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom && !this.opera5)?1:0;
	this.ie4=(document.all && !this.dom && !this.opera5)?1:0;
	this.ie=this.ie4||this.ie5||this.ie6
	this.mac=this.agent.indexOf("Mac")>-1
	this.ns6=(this.dom && parseInt(this.ver) >= 5) ?1:0; 
	this.ns4=(document.layers && !this.dom)?1:0;
	this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5)
	return this
}
var bw=new lib_bwcheck()

//If you want it to move faster you can set this lower, it's the timeout:
var speed = 30

//Sets variables to keep track of what's happening
var loop, timer

//definition de variables pour acceder aux proprietes des navigateurs en fonction des differentes versions de navigateurs (Internet Explorer, Netscape...)
function makeObjPeriode(obj,nest){
    nest=(!nest) ? "":'document.'+nest+'.'
	this.el=bw.dom?document.getElementById(obj):bw.ie4?document.all[obj]:bw.ns4?eval(nest+'document.'+obj):0;
  	this.css=bw.dom?document.getElementById(obj).style:bw.ie4?document.all[obj].style:bw.ns4?eval(nest+'document.'+obj):0;
	this.scrollHeight=bw.ns4?this.css.document.height:this.el.offsetHeight
	this.clipHeight=bw.ns4?this.css.clip.height:this.el.offsetHeight
	this.scrollWidth=bw.ns4?this.css.document.width:this.el.offsetWidth
	this.clipWidth=bw.ns4?this.css.clip.width:this.el.offsetWidth
	this.left=goLeft;this.right=goRight;
	this.moveIt=moveIt; this.x=0; this.y=0;
   this.obj = obj + "Object"
   eval(this.obj + "=this")
   return this
}

// Unit? de mesure : le pixel
var px = bw.ns4||window.opera?"":"px";

function moveIt(x,y){
	this.x = x
	this.y = y
	this.css.left = this.x+px
	this.css.top = this.y+px
}

function goLeft(move){
	if (this.x<0){
		this.moveIt(this.x-move,0)
		if (loop) setTimeout(this.obj+".left("+move+")",speed)
	}
}

function goRight(move){
//alert(document.getElementById('fenetrePeriode').offsetWidth);

var toto = parseInt("-320");
//alert(toto);
	if (this.x>-(document.getElementById('fenetreOeuvre').offsetWidth+document.getElementById('frise').offsetWidth-320)){ // parait Ok, mais traffic des valeurs
	//if (this.x>toto+oCont.clipWidth){ // works mais calcul largeur totale + script dans la page HTML
	//if (this.x>-this.scrollWidth+300+oCont.clipWidth){ // works mais ne s'arrette jamais
	//if (this.x<this.scrollWidth+oCont.clipWidth){ // condition initiale : marche que sous IE
		this.moveIt(this.x-move,0)
			if (loop) setTimeout(this.obj+".right("+move+")",speed)
	}
}

//Calls the scrolling functions. Also checks whether the page is loaded or not.
function scroll(speed){
	if (scrolltextLoaded){
		loop = true;
		if (speed>0) 
		{
			oScroll.right(speed) 		
		} else {
			oScroll.left(speed)
		}
	}
}

//Stops the scrolling (called on mouseout)
function noScroll(){
	loop = false
	if (timer) clearTimeout(timer)
}
//Makes the object
var scrolltextLoaded = false
function scrolltextInit(leftPosition){
	oCont = new makeObjPeriode('fenetreOeuvre')
	oScroll = new makeObjPeriode('textOeuvre','fenetreOeuvre')
	oScroll.moveIt(leftPosition,0)
//	oScroll.moveIt(0,0)
	oCont.css.visibility = "visible"
	scrolltextLoaded = true
}

//detection de navigateurs
ie4 = (document.all)? true:false;
ns6 = (document.getElementById && !document.all)? true:false;

/*
Fonction DstepTxtWrite
 Cette fonction permet d'ecrire dynamiquement dans la page sans recharger celle-ci.
 Parametre
 	inputOeuvre: message
*/		
function DstepTxtWriteOeuvre(inputOeuvre){
	msgOeuvre = inputOeuvre;
	if (ns6){
		var lyr = document.getElementById('divTextOeuvre').innerHTML = msgOeuvre;
	}
 	else if (ie4){
		document.all.divTextOeuvre.innerHTML = msgOeuvre;
	}
}