function isEmailAddr(email)
{
  var result = false;
  var theStr = new String(email);
  var index = theStr.indexOf("@");
  if (index > 0)
  {
    var pindex = theStr.indexOf(".",index);
    if ((pindex > index+1) && (theStr.length > pindex+1))
	result = true;
  }
  return result;
}

function validRequired(formField,fieldLabel)
{
	var result = true;
	if (formField.value == "")
	{
		alert('Please enter a value for the "' + fieldLabel +'" field.');
		formField.focus();
		result = false;
	}
	return result;
}

function validRequiredRadio(formField,fieldLabel)
{
	var result = true;
	if (!formField.checked)
	{
		alert('Please check "' + fieldLabel +'" field.');
		formField.focus();
		result = false;
	}
	return result;
}

function inValidCharSet(str,charset)
{
	var result = true;
	for (var i=0;i<str.length;i++)
		if (charset.indexOf(str.substr(i,1))<0)
		{
			result = false;
			break;
		}
	return result;
}

function validEmail(formField,fieldLabel,required)
{
	var result = true;
	if (required && !validRequired(formField,fieldLabel))
		result = false;
	if (result && ((formField.value.length < 3) || !isEmailAddr(formField.value)) )
	{
		alert("Please enter a complete email address in the form: yourname@yourdomain.com");
		formField.focus();
		result = false;
	}
  return result;
}


function validateForm(theForm)
{
	if (!validRequired(theForm.company_name,"Company name"))
		return false;
	if (!validRequired(theForm.address,"Address"))
		return false;		
	if (!validRequired(theForm.person,"Person to contact"))
		return false;
	if (!validRequired(theForm.position,"Position"))
		return false;
	if (!validRequired(theForm.telephone,"Telephone"))
		return false;		
	if (!validEmail(theForm.email,"E-mail address",true))
		return false;

	if (!validRequired(theForm.job_title,"Job title"))
		return false;
	if (!validRequired(theForm.staff,"Nr of staff required"))
		return false;
	if (!validRequired(theForm.duration,"Contract Duration"))
		return false;
	if (!validRequired(theForm.salery,"Salery [hour rate]"))
		return false;
	if (!validRequired(theForm.hours,"Nr of hours a week"))
		return false;
	if (!validRequired(theForm.acccost,"Accommodation cost per week "))
		return false;
	if (!validRequired(theForm.foodcost,"Food cost per week "))
		return false;		
//	if (!validRequiredRadio(theForm.acc,"ACCOMMODATION"))
//		return false;	
//	if (!validRequiredRadio(theForm.food,"FOOD"))
//		return false;							
	return true;
}