function valid(form) {

	errorDetails = "";
	
	errorDetails += validateEmpty(form.first_name);
	errorDetails += validateEmpty(form.last_name);	
	errorDetails += validateEmail(form.email);
	errorDetails += validatePhone(form.phone);
	errorDetails += validateEmpty(form.company);
	errorDetails += validateEmpty(form.description);
	errorDetails += validateEmpty(form.employees);
	  
	if (errorDetails != "") {
	alert("Some fields have not been entered properly. Please review the fields in red.");
	return false;
	} else {	
	return true;
	}
}

function validateEmpty(fld) {
    var error = "";
 
    if (fld.value.length == 0 || fld.value == '') {
        fld.style.background = '#FFCCCC'; 
		error = "This field cannot be blank";
    } 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 = '#FFCCCC';
        error = "You didn't enter an email address.\n";
    } else if (!emailFilter.test(tfld)) { //test email for illegal characters
        fld.style.background = '#FFCCCC';
        error = "Please enter a valid email address.\n";
    } else if (fld.value.match(illegalChars)) {
        fld.style.background = '#FFCCCC';
        error = "The email address contains illegal characters.\n";
    } else {
        fld.style.background = 'White';
    }
    return error;
}

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

   if (fld.value == "") {
        error = "You didn't enter a phone number.\n";
        fld.style.background = '#FFCCCC';
    } else if (fld.value.length < 10) {
        error = "The phone number is the wrong length. Make sure you included an area code.\n";
        fld.style.background = '#FFCCCC';
    } else {
		fld.style.background = 'White';
	}
    return error;
}