// Copyright © 2001 by Apple Computer, Inc., All Rights Reserved.
//
// You may incorporate this Apple sample code into your own code
// without restriction. This Apple sample code has been provided "AS IS"
// and the responsibility for its operation is yours. You may redistribute
// this code, but you are not permitted to redistribute it as
// "Apple sample code" after having made changes.

// email

function checkEmail (strng) {
var error="";
if (strng == "") {
   error = "You didn't enter an email address.\n";
}

    var emailFilter=/^.+@.+\..{2,3}$/;
    if (!(emailFilter.test(strng))) { 
       error = "Please enter a valid email address.\n";
    }
    else {
//test email for illegal characters
       var illegalChars= /[\(\)\<\>\,\;\:\\\"\[\]]/
         if (strng.match(illegalChars)) {
          error = "The email address contains illegal characters.\n";
       }
    }
return error;    
}


// phone number - strip out delimiters and check for 10 digits

function checkPhone (strng) {
var error = "";
if (strng == "") {
   error = "You didn't enter a phone number.\n";
}

var stripped = strng.replace(/[\(\)\.\-\ ]/g, ''); //strip out acceptable non-numeric characters
    if (isNaN(parseInt(stripped))) {
       error = "The phone number contains illegal characters.";
  
    }
    if (!(stripped.length == 10)) {
    error = "The phone number is the wrong length. Make sure you included an area code.\n";
    } 
return error;
}


// password - between 6-8 chars, uppercase, lowercase, and numeral

function checkPassword (strng) {
var error = "";
if (strng == "") {
   error = "You didn't enter a password.\n";
}

    var illegalChars = /[\W_]/; // allow only letters and numbers
    
    if ((strng.length < 6) || (strng.length > 8)) {
       error = "The password is the wrong length.\n";
    }
    else if (illegalChars.test(strng)) {
      error = "The password contains illegal characters.\n";
    } 
    else if (!((strng.search(/(a-z)+/)) && (strng.search(/(A-Z)+/)) && (strng.search(/(0-9)+/)))) {
       error = "The password must contain at least one uppercase letter, one lowercase letter, and one numeral.\n";
    }  
return error;    
}    


// username - 4-10 chars, uc, lc, and underscore only.

function checkUsername (strng) {
var error = "";
if (strng == "") {
   error = "You didn't enter a Username.\n";
}


    var illegalChars = /\W/; // allow letters, numbers, and underscores
    if ((strng.length < 4) || (strng.length > 35)) {
       error = "The Username is the wrong length. (4-15) \n";
    }
    else if (illegalChars.test(strng)) {
    error = "The Username contains illegal characters.\n";
    } 
return error;
}       


// non-empty textbox

function isEmpty(strng,field) {
var error = "";
  if (strng.length == 0) {
     error = "The "+field+" has not been filled in.\n"
  }
return error;	  
}

// was textbox altered

function isDifferent(strng) {
var error = ""; 
  if (strng != "Can\'t touch this!") {
     error = "You altered the inviolate text area.\n";
  }
return error;
}

// exactly one radio button is chosen

function checkRadio(checkvalue) {
var error = "";
   if (!(checkvalue)) {
       error = "Please check a radio button.\n";
    }
return error;
}

// valid selector from dropdown list

function checkDropdown(choice,field) {
var error = "";
    if (choice == 0) {
    error = "You didn't choose an option from the "+field+" drop-down list.\n";
    }    
return error;
}    

function getField(id) {

    return document.getElementById(id);

}

function checkWholeForm() {

    $.ajax (
	{
	    'type'		: 'POST',
	    'url'		: 'checkCode.php',
	    'data'		: 'code=' + getField('code').value + '&field=questionSecurityCode',
	    'success'	: function (msg) {

		var why = "";
		why += isEmpty(getField('fullname').value,'Fullname');
		why += isEmpty(getField('email').value,'Email');
		why += isEmpty(getField('title').value,'Title');
		why += isEmpty(getField('company').value,'Company');
		why += isEmpty(getField('question').value,'Question');
		why += checkEmail(getField('email').value,'Email');
		why += isEmpty(getField('code').value,'Security Code');

		if (
		    msg.childNodes[0].nodeName != 'error' &&
		    msg.childNodes[0].firstChild.nodeValue == '-'
		) why += 'Invalid Security Code!' + "\n";

		if (why != "") {

		    alert (why);
		    return false;

		} else document.forms['questionForm'].submit();

	    }
	}
    );

    return false;

}


function checkComment() {

    $.ajax (
	{
	    'type'		: 'POST',
	    'url'		: 'checkCode.php',
	    'data'		: 'code=' + getField('code').value + '&field=commentSecurityCode',
	    'success'	: function (msg) {

		var why = "";
		why += isEmpty(getField('email').value,'Email');
		why += isEmpty(getField('firstname').value,'First Name');
		why += isEmpty(getField('lastname').value,'Last Name');
		why += isEmpty(getField('comments').value,'Comments');
		why += checkEmail(getField('email').value,'Question');
		why += isEmpty(getField('code').value,'Security Code');

		if (
		    msg.childNodes[0].nodeName != 'error' &&
		    msg.childNodes[0].firstChild.nodeValue == '-'
		) why += 'Invalid Security Code!' + "\n";

		if (why != "") {

		    alert (why);
		    return false;

		} else document.forms['commentForm'].submit();

	    }
	}
    );

    return false;

}

function checkKit() {

    $.ajax (
	{
	    'type'		: 'POST',
	    'url'		: 'checkCode.php',
	    'data'		: 'code=' + getField('code').value + '&field=kitSecurityCode',
	    'success'	: function (msg) {

		var why = "";
		why += isEmpty(getField('fullname').value,'Full Name');
		why += isEmpty(getField('email').value,'Email');
		why += checkEmail(getField('email').value,'Email');
		why += isEmpty(getField('company').value,'Company');
		why += isEmpty(getField('title').value,'Title');
		why += isEmpty(getField('phone').value,'Phone');
		why += isEmpty(getField('code').value,'Security Code');

		if (
		    msg.childNodes[0].nodeName != 'error' &&
		    msg.childNodes[0].firstChild.nodeValue == '-'
		) why += 'Invalid Security Code!' + "\n";

		if (why != "") {

		    alert (why);
		    return false;

		} else document.forms['kitForm'].submit();

	    }
	}
    );

    return false;

}


    function check_session(){
	
		var why = "";
		why += isEmpty(getField('name').value,'Name');
		why += isEmpty(getField('title').value,'Title');
		why += isEmpty(getField('company').value,'Company');
		why += isEmpty(getField('website').value,'Company website');
		why += isEmpty(getField('address').value,'Mailing address');
		why += checkEmail(getField('email').value,'Email');
		why += isEmpty(getField('phone').value,'Phone');
		why += isEmpty(getField('session_title').value,'Session title');
		why += isEmpty(getField('audience').value,'Target audience');
		why += isEmpty(getField('description').value,'Session description');
		why += isEmpty(getField('bio').value,'Brief speaker bio');
		
		
	if (why != "") {

		    alert (why);
		    return false;

		}
		
		return true;
    }


function checkKit() {

        $.ajax (
                {
                        'type'          : 'POST',
                        'url'           : 'checkCode.php',
                        'data'          : 'code=' + getField('code').value + '&field=kitSecurityCode',
                        'success'       : function (msg) {

                                var why = "";
                                why += isEmpty(getField('fullname').value,'Full Name');
                                why += isEmpty(getField('email').value,'Email');
                                why += checkEmail(getField('email').value,'Email');
                                why += isEmpty(getField('company').value,'Company');
                                why += isEmpty(getField('title').value,'Title');
                                why += isEmpty(getField('phone').value,'Phone');
                                why += isEmpty(getField('code').value,'Security Code');

                                if (
                                        msg.childNodes[0].nodeName != 'error' &&
                                        msg.childNodes[0].firstChild.nodeValue == '-'
                                ) why += 'Invalid Security Code!' + "\n";

                                if (why != "") {

                                        alert (why);
                                        return false;

                                } else document.forms['kitForm'].submit();

                        }
                }
        );

        return false;

}