// JavaScript Document
function validate_required(field,alerttxt)
{
	with (field)
	{
		if (value==null || value=="")
		  {alert(alerttxt);return false}
		else {return true}
	}
}

function validate_email(field,alerttxt)
{
	with (field)
	{
		apos = value.indexOf("@")
		dotpos=value.lastIndexOf(".")
		if (apos<1||dotpos-apos<2) 
		  {alert(alerttxt);return false}
		else {return true}
	}
}

function validate(chk, alerttext){
  if (chk.checked == 1)
    {return true}
  else {
    alert(alerttext)
  	return false
  }
}