JavaScript - Validation Function [RESOLVED]

[simonm]

I need to validate a text box in an ASP.NET project and am trying to use JavaScript even though I have never used it before. My task is so simply, I am embarrassed to ask; how do I ensure my string is at least 6 characters?

Here is my existing code:

<script language="javascript">
	function PasswordCheck(source, arguments)
		{
			if string.length(arguments.value) > 5)
				arguments.IsValid=true;
			else
				arguments.IsValid=false;
		}
</script>

I get an "Object Required" error when it runs.