function validateEmail(mail)
{
	mail = mail.toLowerCase();
	return (mail.search(/^([a-z]+)([a-z0-9\-\_\.\']{1,100})([a-z0-9]+)\@([a-z0-9]+)([a-z0-9\-\.]*)([a-z0-9]+)\.([a-z]{2,6})$/) != -1);
}
	
function checkLength(txtBox, image, min, max)
{
	if ((txtBox.value == null) || (txtBox.value == ""))
	{
		image.src = "nok.png";
		return false;
	}
	else
	{
		if ((txtBox.value.length > max) || (txtBox.value.length < min))
		{
			image.src = "nok.png";
			return false;
		}
		else
		{
			image.src = "ok.png";
			return true;
		}
	}
}