function validateFormOnSubmit(theForm) {
theForm.jscheck.value = 'enabled';
var reason = "";
  reason += validateEmpty(theForm.email); 
  reason += validateEmail(theForm.email);
  
  reason += validatePhone(theForm.phone1,3);
  reason += validatePhoneAreaCode(theForm.phone1);
  
  reason += validatePhone(theForm.phone2,3);
  reason += validatePhone(theForm.phone3,4);
  
  reason += validateEmpty(theForm.firstname);
  reason += validateEmpty(theForm.lastname);

  reason += validateEmpty(theForm.needs);
          
  if (reason != "") {
    //alert("Some of your information need corrections:\n" + reason);
    return false;
  }
  return true;
}

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 != "") {
	    if (!emailFilter.test(tfld)) {              //test email for illegal characters
	        fld.style.background = 'Yellow';
	        error = "Please enter a valid email address.\n";
	    } else if (fld.value.match(illegalChars)) {
	        fld.style.background = 'Yellow';
	        error = "The email address contains illegal characters.\n";
	    } else {
	        fld.style.background = 'White';
	    }
	  }
    return error;
}

function validatePhoneAreaCode(fld) {
    var error="";
    var tfld = trim(fld.value);                        // value of field with whitespace trimmed off
    var phoneFilter = /^0|^000|^1/ ;
    var illegalChars= /[\(\)\<\>\,\;\:\\\"\[\]]/ ;
   
    if (fld.value != "") {
	    if (phoneFilter.test(tfld)) {              //test email for illegal characters
	        fld.style.background = 'Yellow';
	        error = "Please enter a valid email address.\n";
	    } else if (fld.value.match(illegalChars)) {
	        fld.style.background = 'Yellow';
	        error = "The email address contains illegal characters.\n";
	    } else {
	        fld.style.background = 'White';
	    }
	  }
    return error;
}

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

   if (fld.value == "") {
        error = "You didn't enter a phone number.\n";
        fld.style.background = 'Yellow';
    } else if (isNaN(parseInt(stripped))) {
        error = "The phone number contains illegal characters.\n";
        fld.style.background = 'Yellow';
    } else if (!(stripped.length == size)) {
        error = "The phone number is the wrong length. Make sure you included an area code.\n";
        fld.style.background = 'Yellow';
    } else {
    	fld.style.background = 'White';
	}
    return error;
}

function validateEmpty(fld) {
    var error = "";
 
    if (fld.value.length == 0) {
        fld.style.background = 'Yellow'; 
        error = "This required field has not been filled in.\n"
    } else {
        fld.style.background = 'White';
    }
    return error;  
}