// JavaScript Document
function addScrollers() {

// code each scroller as follows:
// startScroll('id of scroller div','content of scroller');
startScroll('myscroller','ccc');
//startScroll('twoscroll','<p>Yet another scroller!</p>');

}


var speed=30;
// scroll speed (bigger = faster)
var dR=false;
// reverse direction

// Vertical Scroller Javascript
// copyright 24th September 2005, by Stephen Chapman
// permission to use this Javascript on your web page is granted
// provided that all of the code below (as well as these
// comments) is used without any alteration
var step = 1;
var myStep = step;
var MassimaAltezza = 0;
//var PosizioneScrollCorrente = 0;
var SalvataggioDirezione = 0;
var DirezioneCorrente = true;

 
function objWidth(obj) {
	if(obj.offsetWidth) return obj.offsetWidth;
	if (obj.clip) return obj.clip.width;
 	return 0;
}

function ImpostaDirezione(Valore)
{
    if (SalvataggioDirezione == 0) {
        DirezioneCorrente = dR;
      
    }
    dR = Valore;
    step = 8;
    myStep = step;
    //PosizioneScrollCorrente = document.documentElement.scrollTop;
   
}

function objHeight(obj) {
	if(obj.offsetHeight) return obj.offsetHeight;
	if (obj.clip) return obj.clip.height;
	return 0;
}


function scrF(i, sH, eH) {
    if (myStep == 0) return;
	var x=parseInt(i.top)+(dR? myStep: -myStep);
	if(dR && x>sH)x=-eH;
	else if(x<2-eH)x=sH;
	i.top = x + 'px';
	if (dR && x >= MassimaAltezza) {

	    i.top = -eH + 'px';
	    myStep = 10;
	}
	else {
	    myStep = step;
	}


	//document.getElementById("IndicatoreAltezza").value = i.top;
}

function startScroll(AltezzaMax, sN, txt) {

    
     MassimaAltezza = AltezzaMax;
	var scr=document.getElementById(sN);
	var sW = 192;//objWidth(scr)-6;      //Larghezza contenitore news. Eventualmente mettere parametro
	var sH = AltezzaMax;
	scr.innerHTML = '<div id="'+sN+'in" style="position:absolute; left:3px;	width:'+sW+';">'+txt+'<\/div>';
	var sTxt = document.getElementById(sN + 'in');
	var sTxt2 = document.getElementById('Div_Supporto_News');
	sTxt2.innerHTML = '<div id="' + "Div_Supporto_News" + 'in" style="position:absolute; left:3px;	width:' + sW + ';">' + txt + '<\/div>';
	var sTxt3 = document.getElementById('Div_Supporto_Newsin');
	var eH = objHeight(sTxt3);
	//sTxt.style.top=(dR? -eH : sH)+'px';
	sTxt.style.top = AltezzaMax / 2+'px';
	sTxt.style.clip='rect(0,'+sW+'px,'+eH+'px,0)';
	setInterval(function() {scrF(sTxt.style,sH,eH);},1000/speed);
}

function pause() {

    myStep = 0;


}

function Rilascia() {
    step = 1;
    myStep = step;
    //document.documentElement.scrollTop = PosizioneScrollCorrente;
    //setTimeout('document.documentElement.scrollTop = PosizioneScrollCorrente;',0);
    //alert(PosizioneScrollCorrente);
    SalvataggioDirezione = 0;
    dR = DirezioneCorrente;

}

function play() {
    step = 1;
    myStep = step;

}

//function getScrollXY() {
//    var scrOfX = 0, scrOfY = 0;
//    if (typeof (window.pageYOffset) == 'number') {
//        //Netscape compliant
//        scrOfY = window.pageYOffset;
//        scrOfX = window.pageXOffset;
//        alert('qui1');
//    } else if (document.body && (document.body.scrollLeft || document.body.scrollTop)) {
//        //DOM compliant
//        scrOfY = document.body.scrollTop;
//        scrOfX = document.body.scrollLeft;
//        alert('qui2');
//    } else if (document.documentElement && (document.documentElement.scrollLeft || document.documentElement.scrollTop)) {
//        //IE6 standards compliant mode
//        scrOfY = document.documentElement.scrollTop;
//        scrOfX = document.documentElement.scrollLeft;
//        alert('qui3');
//    }
//    alert(scrOfX);
//    alert(scrOfY);
//}



//window.onload = addScrollers;