function validateForm(forma)
{
	var validation = true;
	var errorText = "There where some error in filling the form:";
	if (forma._firstName.value == '')
	{	
		validation = false;
		errorText += "\nThe 'First Name' field should not be left blank";
	}
	if (forma._lastName.value == '')
	{	
		validation = false;
		errorText += "\nThe 'Last Name' field should not be left blank";
	}
	if (forma._email.value == '')
	{	
		validation = false;
		errorText += "\nThe 'Email' field should not be left blank";
	}
	if (forma._phone.value == '')
	{	
		validation = false;
		errorText += "\nThe 'Phone' field should not be left blank";
	}
	
	if (!validation)
	{
		alert(errorText);
	}
	
	return validation;
}