Tryit Editor v1.4

<html>
<head>
<script type="text/javascript">
function changeColor(color)
{
document.getElementById('x').style.background=color;
}
</script>
</head>

<body>

<p>This example demonstrates how to change the background color of a button.</p>
<p>Mouse over the three colored table cells, and the background color will change:</p>

<table width="100%"><tr>
<td bgcolor="red" onmouseover="changeColor('red')"> </td>
<td bgcolor="blue" onmouseover="changeColor('blue')"> </td>
<td bgcolor="green" onmouseover="changeColor('green')"> </td>
</tr></table>

<form>
<input id="x" type="button" value="Mouse over the colors">
</form>

</body>
</html>

Your Result:

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