Can you tell me why this script is

[Drone38]

Can you tell me why this script is working under IE 5 and not under Netscape 4.7

<SCRIPT LANGUAGE=&quot;JavaScript&quot;>
<!--
var today = new Date();
function sec()
{
jour=Date.parse(&quot;Jan 1, &quot; + (today.getFullYear() + 1) + &quot; GMT&quot - Date.parse(new Date);
return jour/1000;
}

function min()
{
return Math.floor((sec()-hr()*3600-j()*86400)/60);
}

function hr()
{
return Math.floor((sec()-j()*86400)/3600);
}

function j()
{
return Math.floor(sec()/86400)
}

function fs()
{
return Math.floor((sec()-j()*86400-hr()*3600-min()*60));
}

document.write(j()+&quot; jours &quot;
document.write( (hr()-1<0?23hr()-1)) +&quot; heures &quot;
document.write(min()+&quot; minutes &quot;
document.write(fs());

</SCRIPT>