// JavaScript Document
<!--
	function numCheck(obj,len)
	{
		if (isNumberString(obj) && obj.length==len)
			{return true;}
		else
			{return false;}
	}
	function isNumberString (InString)  
	{
		if (InString == null) return (false);
		if (InString.length == 0) return (false);
		var RefString="1234567890";
		for (Count=0; Count < InString.length; Count++)  {
			TempChar= InString.substring (Count, Count+1);
			if (RefString.indexOf (TempChar, 0)==-1)  
			return (false);
		}
		return (true);
	}
	function validEmail(email) 
	{
		invalidChars = " /:,#'`$~!%^&*()+\"\;<>?\\|	"
		if (email == "") {						// cannot be empty
			return false
		}
		for (i = 0; i < invalidChars.length; i++) {	// does it contain any invalid characters?
			badChar = invalidChars.charAt(i)
			if (email.indexOf(badChar,0) > -1) {
				return false
			}
		}
		atPos = email.indexOf("@",1)			// there must be one "@" symbol
		if (atPos == -1) {
			return false
		}
		if (email.indexOf("@",atPos+1) != -1) {	// and only one "@" symbol
			return false
		}
		periodPos = email.indexOf(".",atPos)
		if (periodPos == -1) {					// and at least one "." after the "@"
			return false
		}
		if (periodPos+3 > email.length)	{		// must be at least 2 characters after the "."
			return false
		}
		return true
	}
//-->