//*****************************************
// funzione per la creazione di un marquee
//*****************************************

//browsercheck
function checkBrowser(){
        this.ver=navigator.appVersion
        this.dom=document.getElementById?1:0
        this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom)?1:0;
        this.ie4=(document.all && !this.dom)?1:0;
        this.ns5=(this.dom && parseInt(this.ver) >= 5) ?1:0;
        this.ns4=(document.layers && !this.dom)?1:0;
        this.bw=(this.ie5 || this.ie4 || this.ns4 || this.ns5)
        return this
}
bw=new checkBrowser()

//valore in pixel per la partenza
lstart=200

//solo una volta? no
loop=true

//valore velocità
speed=60

//valore passaggi in pixel
pr_step=1

//costruzione oggetto
function makeObj(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.newsScroll=newsScroll;
        this.moveIt=b_moveIt; this.x; this.y;
    this.obj = obj + "Object"
    eval(this.obj + "=this")
    return this
}
function b_moveIt(x,y){
        this.x=x;this.y=y
        this.css.left=this.x
        this.css.top=this.y
}
//scrolling dell'oggetto
function newsScroll(speed){
        if(this.y>-this.scrollHeight){
                this.moveIt(0,this.y-pr_step)
                setTimeout(this.obj+".newsScroll("+speed+")",speed)
        }else if(loop) {
                this.moveIt(0,lstart)
                eval(this.obj+".newsScroll("+speed+")")
          }
}
//creo l'oggetto
function newsScrollInit(){
        oNewsCont=new makeObj('divNewsCont')
        oNewsScroll=new makeObj('divNewsText','divNewsCont')
        oNewsScroll.moveIt(0,lstart)
        oNewsCont.css.visibility='visible'
        oNewsScroll.newsScroll(speed)
}

function EtnoWin(html_file, display_frame) {
         open(html_file,display_frame,"toolbar=no,scrollbars=yes,resizable=yes")
}