Uncaught TypeError: Cannot read property ‘style’ of null

Please help me

Below given is the code
if (! submitted) {
alert(“test”);
submitted = true;
ProgressImg = document.getElementById(‘inprogress_img’);
ProgressImg.style.display = “block”;
setTimeOut(“ProgressImg.src = ‘C:\\130.gif’”,1000);
return true;
}
else {
return false;
}

Can someone help?
Regards

Below given is the code
if (! submitted) {
alert(“test”);
submitted = true;
ProgressImg = document.getElementById(‘inprogress_img’);
ProgressImg.style.display = “block”;
setTimeOut(“ProgressImg.src = ‘C:\\130.gif'”,1000);
return true;
}
else {
return false;
}

IE still broken on version 9, but this fixed it.

I used a simpler version – only a hidden image tag on the page.

function appear()
{
ProgressImg = document.getElementById(‘processing’);
ProgressImg.style.visibility = ‘visible’;
setTimeout(“ProgressImg.src = ProgressImg.src”,100);
}
So the only extra line needed for IE compared to my original was the setTimeout()