Change background color using radio button

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im a noob,
change background color using radio button

What I have tried:

JavaScript

<html>
<head>
<script language="javascript">
function changeclr()
{
	var col=document.getElementById('ccolor').value;
	documnet:body.backgroundColor='col';
}
</script>
</head>
<body>
<form>
<input type="radio" name="ccolor" value="red" onclick="changeclr()"> Red<br>
<input type="radio" name="ccolor" value="blue" onclick="changeclr()"> Blue<br>
<input type="radio" name="ccolor" value="white" onclick="changeclr()"> White<br>
<form>
</body>
</html>

Posted 7-Jan-17 20:19pm

BenNy tHa

Updated 7-Jan-17 21:29pm

Wendelius

v3

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Ali Majed HA · Answer 1 · 2017-01-07T21:06:00

Solution 1

Firs: You Do not declare ID="ccolor",

Second: You Can NOT declare same ID for every 3 input tags, You have to declare class="ccolor" and in your function:

JavaScript

var col = document.getElementByClassName("ccolor")[0].value;
document.body.BackgroundColor = col;

Posted 7-Jan-17 21:06pm

Ali Majed HA

SrikantSahu · Answer 2 · 2017-01-07T21:09:00

A small change to your function and additional input param passed.

HTML

<html>
<head>
<script language="javascript">
function changeclr(obj)
{
	document.body.style.backgroundColor=obj.value;
}
</script>
</head>
<body>
<form>
<input type="radio" name="ccolor" value="red" onclick="changeclr(this)"> Red<br>
<input type="radio" name="ccolor" value="blue" onclick="changeclr(this)"> Blue<br>
<input type="radio" name="ccolor" value="white" onclick="changeclr(this)"> White<br>
<form>
</body>
</html>