Problem run in Mozilla

Hi every one, I’m new here. I have this piece of code. Its working fine in IE however not working in Mozilla. i know there is a syntax that IE-only inside the script, but i really don’t know how to change it to make it cross browser.

[CODE]
Here the code..Please expert help me out. his code is not created by me. I just maintain it.

<SCRIPT TYPE=”text/javascript”>
<!–
Xoffset= 20; // modify these values to …
Yoffset= -30; // change the popup position.
var old,skn,iex=(document.all),yyy=-1000;

var ns4=document.layers
var ns6=document.getElementById&&!document.all
var ie4=document.all

if (ns4)
skn=document.dek
else if (ns6)
skn=document.getElementById(“dek”).style
else if (ie4)
skn=document.all.dek.style
if(ns4)document.captureEvents(Event.MOUSEMOVE);
else{
skn.visibility=”visible”
skn.display=”none”
}
document.onmousemove=get_mouse;
function popup(){
var content=”<TABLE WIDTH=320 BORDER=1 BORDERCOLOR=#999999 CELLPADDING=4 CELLSPACING=0 “+
“BGCOLOR=#f6f6dc><TR><TD ALIGN=left class=agenda>”+msg+”</TD></TR></TABLE>”;
yyy=Yoffset;
if(ns4){skn.document.write(content);skn.document.close();skn.visibility=”visible”;}
if(ns6){document.getElementById(“dek”).innerHTML=content;skn.display=”;}
if(ie4){document.all.dek.innerHTML=content;skn.display=”;}
}

function get_mouse(e)
{
var x=(ns4||ns6)?e.pageX:event.x+document.body.scrollLeft;
skn.left=x+Xoffset;
var y=(ns4||ns6)?e.pageY:event.y+document.body.scrollTop;
skn.top=y+yyy;
}

function kill()
{
yyy=-1000;
if(ns4){skn.visibility=”hidden”;}
else if (ns6||ie4)
skn.display=”none”
}
var msg = “<strong>Submit my test for grading</strong><br>” +
“You be able to view your score immediately after submitting the quiz for grading. ” +
“Click the submit button to proceed with the submission.”;

//–>
</SCRIPT>[/CODE]

⭕o:o

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