function ValidLoginId(e)
{
    if (e.length <= 0)
    	return false;
    var re = new RegExp('^([a-z0-9_\\+-]+\\.)*([a-z0-9_\\+-]+)$','i');
    if (e.toString().match(re)) 
    {
	    //one more check for 1N11 format check (Mohammed)
	    if (!isNaN(e) && (e.length == 3 || e.length == 4))
	    {
		    if (e.length == 3 && e.charAt(1) == "1" && e.charAt(2) == "1")
			    return false;
		    else if (e.length == 4 && e.charAt(0) == e.charAt(2) == e.charAt(3) == "1")
			    return false;
		    else
			    return true;
	    }
	    return true;
    }
}