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// Script per avere il banner laterale che segue lo scroll della pagina

window.onerror = null;
var topMargin = 10;
var slideTime = 800;
var ns6 = (!document.all && document.getElementById);
var ie4 = (document.all);
var ns4 = (document.layers);
function layerObject(id,left) {
if (ns6) {
this.obj = document.getElementById(id).style;
this.obj.left = left;
return this.obj;
}
else if(ie4) {
this.obj = document.all[id].style;
this.obj.left = left;
return this.obj;
}
else if(ns4) {
this.obj = document.layers[id];
this.obj.left = left;
return this.obj;
   }
}
function layerSetup() {
floatLyr = new layerObject('floatLayer', 810);
window.setInterval("main()", 10)
}
function floatObject() {
if (ns4 || ns6) {
findHt = window.innerHeight;
} else if(ie4) {
findHt = document.body.clientHeight;
   }
} 
function main() {
if (ns4) {
this.currentY = document.layers["floatLayer"].top;
this.scrollTop = window.pageYOffset;
mainTrigger();
}
else if(ns6) {
this.currentY = parseInt(document.getElementById('floatLayer').style.top);
this.scrollTop = scrollY;
mainTrigger();
} else if(ie4) {
this.currentY = floatLayer.style.pixelTop;
this.scrollTop = document.body.scrollTop;
mainTrigger();
   }
}
function mainTrigger() {
var newTargetY = this.scrollTop + this.topMargin;
if ( this.currentY != newTargetY ) {
if ( newTargetY != this.targetY ) {
this.targetY = newTargetY;
floatStart();
}
animator();
   }
}
function floatStart() {
var now = new Date();
this.A = this.targetY - this.currentY;
this.B = Math.PI / ( 2 * this.slideTime );
this.C = now.getTime();
if (Math.abs(this.A) > this.findHt) {
this.D = this.A > 0 ? this.targetY - this.findHt : this.targetY + this.findHt;
this.A = this.A > 0 ? this.findHt : -this.findHt;
}
else {
this.D = this.currentY;
   }
}
function animator() {
var now = new Date();
var newY = this.A * Math.sin( this.B * ( now.getTime() - this.C ) ) + this.D;
newY = Math.round(newY);
if (( this.A > 0 && newY > this.currentY ) || ( this.A < 0 && newY < this.currentY )) {
if ( ie4 )document.all.floatLayer.style.pixelTop = newY;
if ( ns4 )document.layers["floatLayer"].top = newY;
if ( ns6 )document.getElementById('floatLayer').style.top = newY + "px";
   }
}
function start() {
if(ns6||ns4) {
pageWidth = innerWidth;
pageHeight = innerHeight;
layerSetup();
floatObject();
}
else if(ie4) {
pageWidth = document.body.clientWidth;
pageHeight = document.body.clientHeight;
layerSetup();
floatObject();
   }
}

function nascondi() { 
  if (document.layers) {
    document.layers["staticcontent"].style.visibility="hidden";
    /*cambio la visibilità da visibile a invisibile con IE*/ 
  } else if (document.layers){ //NN4
    document.layers["staticcontent"].visibility="hide";
  } else if (document.getElementById) { //NN6 ed Opera
    document.getElementById("staticcontent").style.visibility="hidden";
  } 

}


var zoom;
var pippo;
var pluto;


function center_me(w,h){
	if(navigator.appName.indexOf('Explorer')+1){
		var win_width=w;
		var win_height=h;
	} else {
		var win_width=window.outerWidth;
		var win_height=window.outerHeight;
	}
	var pos_x=(screen.width-win_width)/2;
	var pos_y=(screen.height-win_height)/2;
	moveTo(pos_x,pos_y);
}



function open_pop(url,w,h){
	if(pippo) pippo.close();
	pippo = window.open(url,'pop','height='+h+',width='+w+'location=no,resizable=no,scrollbars=no');
}


function open_scheda(url,w,h){
	if(pluto) pluto.close();
	pluto = window.open(url,'scheda','height='+h+',width='+w+'location=no,resizable=yes,scrollbars=yes');
}

function open_noscroll(url,w,h){
	if(zoom){
	      zoom.close();
           }
	zoom=window.open(url,'pop','height='+h+',width='+w+'location=no,resizable=no,scrollbars=no');
	zoom.focus();
}
function open_scroll(url,w,h){
	if(zoom){
	      zoom.close();
           }
	zoom=window.open(url,'pop','height='+h+',width='+w+'location=no,resizable=no,scrollbars=yes');
}