No funciona ni en IE,ni Opera,solo en Firefox

[unkito]

No se si es que no ha salido el codigo que puse antes pues no lo veo,de todas maneras aqui lo repito,por si podeis ayudarme.

Código:

<SCRIPT LANGUAGE="JavaScript">

if (document.layers) {navigator.family = "nn6"}
if (document.all) {navigator.family = "ie6"}
if (window.navigator.userAgent.toLowerCase().match("gecko")) {navigator.family = "gecko"}


descarray = new Array(
"",
"",
"",
"</center><br></a><br><br>"
);

overdiv="0";

function popLayer(a){
if(!descarray[a]){descarray[a]="<font color=red>Este popup (#"+a+") no es correcto - necesita descripcion</font>";}
if (navigator.family == "gecko") {pad="0"; bord="1 bordercolor=black";}
else {pad="1"; bord="0";}
desc = "<table cellspacing=0 cellpadding="+pad+" border="+bord+" bgcolor=FF8800><tr><td>"
+"<table cellspacing=0 cellpadding=3 border=0 width=300 heigth=200><tr><td bgcolor=333333><center><font size=-1 color=FFFFFF>"
+descarray[a]
+"</td></tr></table>"
+"</td></tr></table>";
if(navigator.family =="nn6") {
document.object1.document.write(desc);
document.object1.document.close();
document.object1.left=x+15;
document.object1.top=y-5;
}
else if(navigator.family =="ie6"){
object1.innerHTML=desc;
object1.style.pixelLeft=x+15;
object1.style.pixelTop=y-5;
}
else if(navigator.family =="gecko"){
document.getElementById("object1").innerHTML=desc;
document.getElementById("object1").style.left=x+15;
document.getElementById("object1").style.top=y-5;
}
}
function hideLayer(){
if (overdiv == "0") {
if(navigator.family =="nn6") {eval(document.object1.top="-500");}
else if(navigator.family =="ie6"){object1.innerHTML="";}
else if(navigator.family =="gecko") {document.getElementById("object1").style.top="-500";}
}
}


var isNav = (navigator.appName.indexOf("Netscape") !=-1);
function handlerMM(e){
x = (isNav) ? e.pageX : event.clientX + document.body.scrollLeft;
y = (isNav) ? e.pageY : event.clientY + document.body.scrollTop;
}
if (isNav){document.captureEvents(Event.MOUSEMOVE);}
document.onmousemove = handlerMM;

</script>

Gracias,otra vez