// Validation script for trade Enquiry form

function validateForm()
{

	$error = 0;
	
	if(document.registration.typeOfBusiness == "")
	{
		$error = 1;
		$message = "Please enter some basic information about your business";
	}
	
	if(document.registration.telephone == "")
	{
		$error = 1;
		$message = "Please enter your daytime contact telephone number";
	}
	
	// Is this a valid email
	if(validateEmail(document.registration.email.value) == false)
	{
		$error = 1;
		$message = "Please enter a valid email address";
	}
	
	if(document.registration.email.value == "")
	{
		$error = 1;
		$message = "Please enter your email address";
	}
	
	if(document.registration.country.value == "")
	{
		$error = 1;
		$message = "Please enter your country";
	}
	
	if(document.registration.postcode.value == "")
	{
		$error = 1;
		$message = "Please enter your postcode";
	}
	
	if(document.registration.address1.value == "")
	{
		$error = 1;
		$message = "Please enter your address";
	}
	
	if(document.registration.company.value == "")
	{
		$error = 1;
		$message = "Please enter your company name";
	}
	
	if(document.registration.name.value == "")
	{
		$error = 1;
		$message = "Please enter your name";
	}
	

	if($error == 1)
	{
		alert($message);
		return false;
	}
	
	else
	{
		document.registration.submit();	
	}

}

function validateEmail(str) 
{
		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1)
		{
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr)
		{
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr)
		{
		    return false
		}

		if (str.indexOf(at,(lat+1))!=-1)
		{
		    return false
		}

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot)
		 {
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1)
		 {
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1)
		 {
		    return false
		 }

 		 return true					
}