cannot get property 'value' of null

**gelatine1** · 02-25-2013 11:30 AM

hello i got some code which used to work in my previous javascripts and now it's giving me this damn error again i don't see what i am doing wrong could someone tell me please.

Code:

<html>
<head>
<script>
function fill() {
	document.getElementById("content").innerHTML="";
	var rij=parseFloat(document.getElementById("aap").value);
	var kolom=parseFloat(document.getElementById("kolom").value);
	for (i=0;i<kolom;i++) {
		for (j=0;j<rij;j++) {
			document.getElementById("content").innerHTML+="<input type='number' value='0' id='m"+i+j+"'>";
		}
		document.getElementById("content").innerHTML+="<br>";
	}
}
</script>
</head>
<body id="content">
<input type="number" id="aap" value="2" /> x <input type="number" id="kolom" value='3'/><br>
<input type="button" onclick="fill()" value="matrix">
</body>
</html>

**Logic Ali** · 02-25-2013 01:26 PM

Originally Posted by gelatine1

document.getElementById("content").innerHTML="";

The first thing you're doing is wiping-out the entire content of <body>, so how can you expect to refer to what no longer exists?

**gelatine1** · 02-26-2013 05:48 AM

Ohhh stupid from me i didn't see that. thanks for your help.

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cannot get property 'value' of null

thank you

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