function validateFormOnSubmit(quick) {
var reason = "";

  reason += validateEmpty1(quick.name);
  //reason += validateEmpty2(quick.company); // Uncomment to require company
  reason += validateEmpty3(quick.enquiry);

  if (quick.email.value.length == 0) 
  {
   reason += validatePhone(quick.telephone);
  }

  if (quick.telephone.value.length == 0) 
  {
   reason += validateEmail(quick.email);
  }

  reason += validateEmpty4(quick.searchpostcode);
  reason += validateEmpty5(quick.searchbuilding);
  reason += validateEmpty6(quick.town);
  reason += validateEmpty7(quick.county);
      
  if (reason != "") {
    alert("Please correct the following fields:\n\n" + reason);
    return false;
  }

  return true;
}

function validateEmpty1(fld) {
    var error = "";
 
    if (fld.value.length == 0) {
        fld.style.background = '#FF1E04'; 
        error = "Please enter your name.\n"
    } else {
        fld.style.background = 'White';
    }
    return error;  
}

function validateEmpty2(fld) {
    var error = "";
 
    if (fld.value.length == 0) {
        fld.style.background = '#FF1E04'; 
        error = "Please enter your company.\n"
    } else {
        fld.style.background = 'White';
    }
    return error;  
}

function validateEmpty3(fld) {
    var error = "";
 
    if (fld.value.length == 0) {
        fld.style.background = '#FF1E04'; 
        error = "Please select enquiry type.\n"
    } else {
        fld.style.background = 'White';
    }
    return error;  
}


function validatePhone(fld) {
    var error = "";
    var stripped = fld.value.replace(/[\(\)\.\-\ ]/g, '');    

   if (fld.value == "") {
        error = "Please enter your telephone number.\n";
        fld.style.background = '#FF1E04';
    } else if (isNaN(parseInt(stripped))) {
        error = "The phone number contains illegal characters.\n";
        fld.style.background = '#FF1E04';
    } else {
        fld.style.background = 'White';
    }
    return error;
}

function trim(s)
{
  return s.replace(/^\s+|\s+$/, '');
}

function validateEmail(fld) {
    var error="";
    var tfld = trim(fld.value);                        // value of field with whitespace trimmed off
    var emailFilter = /^[^@]+@[^@.]+\.[^@]*\w\w$/ ;
    var illegalChars= /[\(\)\<\>\,\;\:\\\"\[\]]/ ;
   
    if (fld.value == "") {
        fld.style.background = '#FF1E04';
        error = "Please enter your email address.\n";
    } else if (!emailFilter.test(tfld)) {              //test email for illegal characters
        fld.style.background = '#FF1E04';
        error = "Please enter a valid email address.\n";
    } else if (fld.value.match(illegalChars)) {
        fld.style.background = '#FF1E04';
        error = "Your email address contains illegal characters.\n";
    } else {
        fld.style.background = 'White';
    }
    return error;
}

function validateEmpty4(fld) {
    var error = "";
 
    if (fld.value.length == 0) {
        fld.style.background = '#FF1E04'; 
        error = "Please enter your post code.\n"
    } else {
        fld.style.background = 'White';
    }
    return error;  
}

function validateEmpty5(fld) {
    var error = "";
 
    if (fld.value.length == 0) {
        fld.style.background = '#FF1E04'; 
        error = "Please enter your house number.\n"
    } else {
        fld.style.background = 'White';
    }
    return error;  
}

function validateEmpty6(fld) {
    var error = "";
 
    if (fld.value.length == 0) {
        fld.style.background = '#FF1E04'; 
        error = "Please enter your town.\n"
    } else {
        fld.style.background = 'White';
    }
    return error;  
}

function validateEmpty7(fld) {
    var error = "";
 
    if (fld.value.length == 0) {
        fld.style.background = '#FF1E04'; 
        error = "Please enter your county.\n"
    } else {
        fld.style.background = 'White';
    }
    return error;  
}