// Dynamic Layer Object
// sophisticated layer/element targeting and animation object which provides the core functionality needed in most DHTML applications
// 19990604

// BECAREFUL : Modification by Vinternet 26/04/2001

// Copyright (C) 1999 Dan Steinman
// Distributed under the terms of the GNU Library General Public License
// Available at http://www.dansteinman.com/dynapi/


function DynLayer(id,nestref,frame) {
if (!is.ns5 && !DynLayer.set && !frame) DynLayerInit()
this.frame = frame || self
if (is.ns) {
if (is.ns4) {
var nestref = DynLayer.nestRefArray[id]
if (!DynLayerTest(id,nestref)) return
this.css = (nestref)? eval("document."+nestref+".document."+id) : document.layers[id]
this.elm = this.event = this.css
this.doc = this.css.document
}
else if (is.ns5) {
this.elm = document.getElementById(id)
this.css = this.elm.style
this.doc = document
}
this.x = this.css.left
this.y = this.css.top
this.w = this.css.clip.width
this.h = this.css.clip.height
}
else if (is.ie) {
this.elm = this.event = this.frame.document.all[id]
this.css = this.frame.document.all[id].style
this.doc = document
this.x = this.elm.offsetLeft
this.y = this.elm.offsetTop
this.w = (is.ie4)? this.css.pixelWidth : this.elm.offsetWidth
this.h = (is.ie4)? this.css.pixelHeight : this.elm.offsetHeight
}
this.id = id
this.nestref = nestref
this.obj = id + "DynLayer"
eval(this.obj + "=this")
}
function DynLayerMoveTo(x,y) {
if (x!=null) {
this.x = x
if (is.ns) this.css.left = this.x
else this.css.pixelLeft = this.x
}
if (y!=null) {
this.y = y
if (is.ns) this.css.top = this.y
else this.css.pixelTop = this.y
}
}
function DynLayerMoveBy(x,y) {
this.moveTo(this.x+x,this.y+y)
}
function DynLayerShow() {
this.css.visibility = (is.ns4)? "show" : "visible"
}
function DynLayerHide() {
this.css.visibility = (is.ns4)? "hide" : "hidden"
}
DynLayer.prototype.moveTo = DynLayerMoveTo
DynLayer.prototype.moveBy = DynLayerMoveBy
DynLayer.prototype.show = DynLayerShow
DynLayer.prototype.hide = DynLayerHide
DynLayerTest = new Function('return true')

// DynLayerInit Function
function DynLayerInit(nestref) {
if (!DynLayer.set) DynLayer.set = true
if (is.ns) {
if (nestref) ref = eval('document.'+nestref+'.document')
else {nestref = ''; ref = document;}
for (var i=0; i<ref.layers.length; i++) {
var divname = ref.layers[i].name
DynLayer.nestRefArray[divname] = nestref
var index = divname.indexOf("Div")
if (index > 0) {
eval(divname.substr(0,index)+' = new DynLayer("'+divname+'","'+nestref+'")')
}
if (ref.layers[i].document.layers.length > 0) {
DynLayer.refArray[DynLayer.refArray.length] = (nestref=='')? ref.layers[i].name : nestref+'.document.'+ref.layers[i].name
}
}
if (DynLayer.refArray.i < DynLayer.refArray.length) {
DynLayerInit(DynLayer.refArray[DynLayer.refArray.i++])
}
}
else if (is.ie) {
for (var i=0; i<document.all.tags("DIV").length; i++) {
var divname = document.all.tags("DIV")[i].id
var index = divname.indexOf("Div")
if (index > 0) {
eval(divname.substr(0,index)+' = new DynLayer("'+divname+'")')
}
}
}
return true
}
DynLayer.nestRefArray = new Array()
DynLayer.refArray = new Array()
DynLayer.refArray.i = 0
DynLayer.set = false




// BrowserCheck Object
function BrowserCheck() {
var b = navigator.appName
if (b=="Netscape") this.b = "ns"
else if (b=="Microsoft Internet Explorer") this.b = "ie"
else this.b = b
this.version = navigator.appVersion
this.v = parseInt(this.version)
this.ns = (this.b=="ns" && this.v>=4)
this.ns4 = (this.b=="ns" && this.v==4)
this.ns5 = (this.b=="ns" && this.v==5)
this.ie = (this.b=="ie" && this.v>=4)
this.ie4 = (this.version.indexOf('MSIE 4')>0)
this.ie5 = (this.version.indexOf('MSIE 5')>0)
this.min = (this.ns||this.ie)
}
is = new BrowserCheck()

// CSS Function
function css(id,left,top,width,height,color,vis,z,other) {
if (id=="START") return '<STYLE TYPE="text/css">\n'
else if (id=="END") return '</STYLE>'
var str = (left!=null && top!=null)? '#'+id+' {position:absolute; left:'+left+'px; top:'+top+'px;' : '#'+id+' {position:relative;'
if (arguments.length>=4 && width!=null) str += ' width:'+width+'px;'
if (arguments.length>=5 && height!=null) {
str += ' height:'+height+'px;'
if (arguments.length<9 || other.indexOf('clip')==-1) str += ' clip:rect(0px '+width+'px '+height+'px 0px);'
}
if (arguments.length>=6 && color!=null) str += (is.ns)? ' layer-background-color:'+color+';' : ' background-color:'+color+';'
if (arguments.length>=7 && vis!=null) str += ' visibility:'+vis+';'
// modification le 29/10/2003
//if (arguments.length>=8 && z!=null) str += ' z-index:'+z+';'
str += ' z-index:1;'
if (arguments.length==9 && other!=null) str += ' '+other
str += '}\n'
return str
}
function writeCSS(str,showAlert) {
str = css('START')+str+css('END')
document.write(str)
if (showAlert) alert(str)
}

function NewsTicker(x,y,width,height) {   //x,y,
this.name = 'NewsTicker'+(NewsTicker.count++)
this.x = x
this.y = y
this.w = width
this.h = height
this.obj = this.name + "Object"
eval(this.obj + "=this")
this.items = new Array()
this.scrollCount = 0

this.pauseLength = 5000
this.inc = 2
this.speed = 60
this.fromX = 0
this.fromY = this.h
this.bgColor = null

this.addItem = NewsTickerAddItem
this.activate = NewsTickerActivate
this.build = NewsTickerBuild
this.start = NewsTickerStart
this.slide = NewsTickerSlide
}
function NewsTickerAddItem(text) {
var i = this.items.length
this.items[i] = new Object()
this.items[i].text = text
}
function NewsTickerBuild() {
this.css = css(this.name,this.x,this.y,this.w,this.h) // this.x,this.y,
this.div = '<div id="'+this.name+'">'
for (var i=0;i<this.items.length;i++) {
this.css += css(this.name+'Item'+i,0,0,this.w,this.h,this.bgColor,'hidden')
this.div += '<div id="'+this.name+'Item'+i+'">'+this.items[i].text+'</div>'
}
this.div += '</div>'
}
function NewsTickerActivate(autostart) {
for (var i=0;i<this.items.length;i++) {
this.items[i].lyr = new DynLayer(this.name+'Item'+i)
this.items[i].lyr.moveTo(this.fromX,this.fromY)
this.items[i].lyr.show()
}
this.items[0].lyr.moveTo(0,0)
this.lyr = new DynLayer(this.name)
var num = Math.sqrt(Math.pow(this.fromX,2) + Math.pow(this.fromY,2))/this.inc
this.dx = this.fromX/num || 0
this.dy = this.fromY/num || 0
if (autostart!=false) setTimeout(this.obj+'.start()',this.pauseLength)
}
function NewsTickerStart() {
if (!this.started) {
this.started = true
var t = this.scrollCount
var b = (this.scrollCount==this.items.length-1)? 0 : this.scrollCount+1
var obj1 = this.items[t].lyr.obj
var obj2 = this.items[b].lyr.obj
this.timer = setInterval(this.obj+'.slide('+obj1+','+obj2+')',this.speed)
}
}
function NewsTickerSlide(obj1,obj2) {
obj1.moveBy(-this.dx,-this.dy)
obj2.moveBy(-this.dx,-this.dy)
if ((this.dx!=0 && Math.floor(obj2.x)==0) || (this.dy!=0 && Math.floor(obj2.y)==0)) {
clearInterval(this.timer)
obj1.moveTo(this.fromX,this.fromY)
obj2.moveTo(0,0)
this.scrollCount = (this.scrollCount==this.items.length-1)? 0 : this.scrollCount+1
this.timer = setTimeout(this.obj+'.started=false;'+this.obj+'.start()',this.pauseLength)
}
}
NewsTicker.count = 0