Javascript works well in Internet Explorer but doesn't Mozila

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It displays works well with Internet Explorer but fails to work with mozila and opera

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<html>

<head>

<script language="JavaScript1.2">

var size = 25;
var speed_between_messages=1500  //in miliseconds


var tekst = new Array()
{
tekst[0] = "Welcome";
tekst[1] = "Home";
tekst[2] = "Feel";
tekst[3] = "Free";
}
var klaar = 0;
var s = 0;
var veran =0;
var tel = 0;
function bereken(i,Lengte)
{
return (size*Math.abs( Math.sin(i/(Lengte/3.14))) );
}

function motor(p)
{
var output = "";
for(w = 0;w < tekst[s].length - klaar+1; w++)
{
q = bereken(w/2 + p,16);
if (q > size - 0.5)
{klaar++;}
if (q < 5)
{tel++;
if (tel > 1)
{
tel = 0;
if (veran == 1)
{
veran = 0;
s++;
if ( s == tekst.length)
{s = 0;}
p = 0;
if (window.loop)
{clearInterval(loop)}
loop = motor();
}
}
}
output += "<font style='font-size: "+ q +"pt'>" +tekst[s].substring(w,w+1)+ "</font>";
}
for(k=w;k<klaar+w;k++)
{
output += "<font style='font-size: " + size + "pt'>" +tekst[s].substring(k,k+1)+ "</font>";
}
idee.innerHTML = output;
}

function startmotor(p){
if (!document.all)
return
var loop = motor(p);
if (window.time)
{clearInterval(time)}
if (klaar == tekst[s].length)
{
klaar = 0;
veran = 1;
tel = 0;
var time = setTimeout("startmotor(" +(p+1) + ")", speed_between_messages);
}else
{
var time =setTimeout("startmotor(" +(p+1) + ")", 50);
}

}

</script>

<div ID="idee"></div>
 </head>

 <body onload="startmotor(0)">
 </body>

 </html>

Posted 8-Aug-13 9:51am

braop

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ZurdoDev 8-Aug-13 16:12pm

What does fails to work mean?

1 solution

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Maarten Kools · Accepted Answer · 2013-08-08T10:15:00

Just remove this part:

JavaScript

if (!document.all)
return

For future reference, make sure you download Firebug[^], a Firefox extension which allows you to debug your scripts (and I do believe Opera has developer tools built in as well). Using that, the JavaScript console showed this message:

Non-standard document.all property was used. Use W3C standard document.getElementById() instead.
if (!document.all)

As you're not using document.all anywhere else, removing it makes sure the script works.