wrote a program using javascript for showing error message beside field instead of alerting but it is not working please help me to work the program
AlaskasWorld
<html>
<head>
<link rel="stylesheet" type="text/css" href="mystyle.css">
<script type="text/javascript">
function check()
{
if(document.getElementById('firstname').value==NULL || myform.firstname.value.length==0)
{
document.getElementById('errorname').value="this is an invalid name";
}
}
</script>
</head>
<body>
<form name="myform">
<p>name</p>
<input type="text" name="firstname" onblur="check()"/>
<span id="errorname"></span>
<br/><input type="button" value="submit" />
</form>
</body>
</html>
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