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 validRadio(formField,fieldLabel)
{
	var result = true;
	myOption = -1;
	for (i=formField.length-1; i > -1; i--) {
	if (formField[i].checked) {
	myOption = i; i = -1;
	}
	}
	if (myOption == -1) {
	alert('Please enter a value for the "' + fieldLabel +'" field.');
	result = false;
	
}
return result;
}


function validTerms(formField,fieldLabel)
{
	var result = true;
	
	if (formField.checked != 1) {
	alert('You must agree to our terms in order to submit a request.');
	result = false;
	
}
return result;
}

function allDigits(str)
{
	return inValidCharSet(str,"0123456789");
}

function inValidCharSet(str,charset)
{
	var result = true;

	// Note: doesn't use regular expressions to avoid early Mac browser bugs	
	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 validStoreID(formField,fieldLabel,required)
{
	var result = true;

	if (required && !validRequired(formField,fieldLabel))
		result = false;
  
 	if (result)
 	{
 		if (!allDigits(formField.value))
 		{
 			alert('Please enter numerical "' + fieldLabel +'".');
			formField.focus();		
			result = false;
		}
	} 
	
	
	if (result)
 	{
		
		if (formField.value.length < 3)
 		{
 			alert('Please enter at least a 3 digit "' + fieldLabel +'".');
			formField.focus();		
			result = false;
		}
	}
	
	
	return result;
}

function validNum(formField,fieldLabel,required)
{
	var result = true;

	if (required && !validRequired(formField,fieldLabel))
		result = false;
  
 	if (result)
 	{
 		if (!allDigits(formField.value))
 		{
 			alert('Please enter a number for the "' + fieldLabel +'" field.');
			formField.focus();		
			result = false;
		}
	} 
	
	return result;
}

function validState(formField,fieldLabel,required)
{
	var result = true;

	if (required && !validRequired(formField,fieldLabel))
		result = false;
  
	 	if (result)
 	{
		
		if (formField.selectedIndex == 0)
 		{
 			alert('Please choose a "' + fieldLabel +'".');
			formField.focus();		
			result = false;
		}
	}
	
	return result;
}

function validZip(formField,fieldLabel,required)
{
	var result = true;

	if (required && !validRequired(formField,fieldLabel))
		result = false;
  
 	if (result)
 	{
 		if (!allDigits(formField.value))
 		{
 			alert('Please enter a valid "' + fieldLabel +'".');
			formField.focus();		
			result = false;
		}
		
	} 
	
	 	if (result)
 	{
		
		if (formField.value.length < 5)
 		{
 			alert('Please enter a 5 digit or 9 digit "' + fieldLabel +'".');
			formField.focus();		
			result = false;
		}
	}
	
	return result;
}

function isPhoneNumber(formField,fieldLabel,required) 
{
	var result = true;

	if (required && !validRequired(formField,fieldLabel))
		result = false;
  
 	if (result)
 	{
 
     // Check for correct phone number
     rePhoneNumber = new RegExp(/^\([1-9]\d{2}\)\s?\d{3}\-\d{4}$/);
 
     if (!rePhoneNumber.test(formField.value)) {
          alert(' "' + fieldLabel +'"Must be formatted as: (xxx) xxx-xxxx');
		  formField.focus();
          return false;

     }
 
	}
	
	return result;
}

function isFaxNumber(formField,fieldLabel,required) 
{
	var result = true;
  
 	if (result)
 	{
 
     // Check for correct phone number
     rePhoneNumber = new RegExp(/^\([1-9]\d{2}\)\s?\d{3}\-\d{4}$/);
 
     if (!rePhoneNumber.test(formField.value)) {
          alert("Fax Number Must be formatted as: (xxx) xxx-xxxx");
          return false;
     }
 
	}
	
	return result;
}



function validInt(formField,fieldLabel,required)
{
	var result = true;

	if (required && !validRequired(formField,fieldLabel))
		result = false;
  
 	if (result)
 	{
 		var num = parseInt(formField.value,10);
 		if (isNaN(num))
 		{
 			alert('Please enter a number for the "' + fieldLabel +'" field.');
			formField.focus();		
			result = false;
		}
	} 
	
	return result;
}

function validOpt(formField,fieldLabel,required)
{
	var result = true;

	if (required && !validRequired(formField,fieldLabel))
		result = false;
  
	 	if (result)
 	{
		
		if (formField.selectedIndex == 0)
 		{
 			alert('Please choose a "' + fieldLabel +'".');
			formField.focus();		
			result = false;
		}
	}
	
	return result;
}



function validateForm(product_form)
{
	// Customize these calls for your form

	// Start ------->
				
	if (!validRadio(product_form.new_vendor,"New Vendor"))
		return false;
	
	if (!validRequired(product_form.txt_cname,"Company Name"))
		return false;
		
	if (!validInt(product_form.txt_cphone,"Company Phone"))
		return false;	
	
	if (!validRequired(product_form.txt_name,"Contact Name"))
		return false;
	
	if (!validInt(product_form.txt_phone,"Contact Phone"))
		return false;
		
	if (!validEmail(product_form.txt_email,"Email Address",true))
		return false;
					
	if (!validRequired(product_form.txt_address,"Address"))
		return false;
		
	if (!validRequired(product_form.txt_city,"City"))
		return false;
		
	if (!validState(product_form.state,"State"))
		return false;
		
	if (!validRequired(product_form.txt_zip,"Postal Code"))
		return false;
		
	if (!validRequired(product_form.country,"Country"))
		return false;	
		
	if (!validRequired(product_form.txt_product,"Product Name"))
		return false;
		
	if (!validRequired(product_form.txt_manufacturer,"Manufacturer"))
		return false;
		
	if (!validRequired(product_form.txt_revenue,"Potential Revenue"))
		return false;
		
	if (!validRequired(product_form.txt_margin,"Potential Margin"))
		return false;
		
	if (!validRequired(product_form.txt_inventory,"Average Inventory"))
		return false;
		
	if (!validRequired(product_form.txt_prod_desc,"Product Description"))
		return false;
		
	if (!validRequired(product_form.txt_com_desc,"Competing Products"))
		return false;
		
	if (!validRequired(product_form.txt_category,"Category"))
		return false;
		
	if (!validRadio(product_form.install,"Installed Sales"))
		return false;
		
	if (!validRadio(product_form.training,"Training Availability"))
		return false;
		
	// <--------- End
	
	return true;
}