var oldwhich="";
var waittime=300;
var layerTimer;
var position_top=30;
var position_left=160;
function showlayer(nam,val)
{
if (val>0) {document.getElementById(nam).style.visibility="visible";} else {document.getElementById(nam).style.visibility="hidden";}
return;
}
function getmenuheight (nam)
{
return document.getElementById(nam).offsetHeight;
}
//turn on layer and rollover
function layOver(nam,place)
{
obj=document.getElementById(nam);
if (oldwhich!=nam&&oldwhich!="")
{
ol=document.getElementById(oldwhich).style;
ol.visibility="hidden";
}
if (obj)
{
l = document.getElementById(nam).style;
l.visibility = "visible";
x=findPosX(place);
y=findPosY(place);
l.position='absolute';
l.left=position_left+x+"px";
if (position_top+y-getmenuheight(nam)/2>document.body.scrollTop) l.top=position_top+y-getmenuheight(nam)/2+"px"; else l.top=document.body.scrollTop+"px";
oldwhich=nam;
}
clearTimeout(layerTimer);
return;
}
//turn off layer and rollover if user is completely off nav
function stopOver()
{
layerTimer = setTimeout("layOut()",waittime);
}
function layOut()
{
if (oldwhich!="")
{
ol = document.getElementById(oldwhich).style;
ol.visibility = "hidden";
}
}
//reset the timer
function startOver()
{
clearTimeout(layerTimer);
}
function findPosX(id){
var curleft = 0;
obj=document.getElementById(id);
obj = obj.offsetParent;
while (obj.offsetParent){
curleft += obj.offsetLeft
obj = obj.offsetParent;
}
return curleft;
}
function findPosY(id){
var curtop = 0;
obj=document.getElementById(id);
obj = obj.offsetParent;
while (obj.offsetParent){
curtop += obj.offsetTop
obj = obj.offsetParent;
}
return curtop;
}
function showImage(img, alt){
foto1= new Image();
foto1.src=(img);
Controlla(img, alt);
}
function Controlla(img, alt){
if((foto1.width!=0)&&(foto1.height!=0)){
viewFoto(img ,alt);
}
else{
funzione="Controlla('"+img+"', '"+alt+"')";
intervallo=setTimeout(funzione,20);
}
}
function viewFoto(img, alt){
altez=foto1.height+60;
if (altez>800)
{
altez=800;
largh=foto1.width+60;
stringa="width="+largh+",height="+altez+",scrollbars=yes";
} else
{
largh=foto1.width+40;
stringa="width="+largh+",height="+altez+",scrollbars=no";
}
title=document.title;
finestra=window.open('about:blank',"",stringa);
finestra.document.write(""+title+"
"+alt+" |
");
}