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Thread: Error on the validation.

  1. #1
    Join Date
    Mar 2013

    Unhappy Error on the validation.

    Hi there,
    I am currently doing some exercises on the JavaScript 4th edition by Don Gosselin. Well, the book itself is good, but here comes the problem (also i know its a pain in the ass to read that much code, but please if you are able to provide some help will be much appreciated)...and just to mention I am pasting the code for the form, but the problem is that the validation part is not working:

    		function checkForNumber(fieldValue){
    			var numberCheck = isNaN(fieldValue);
    			if (numberCheck == true){
    				window.alert("You must enter a numeric value!");
    				return false;
    		//Confirm Password box function
    		function confirmPassword(){
    			!= document.forms[0].password.value){
    				window.alert("You did not enter the same password!");
    		function noDelivery(){
    			for(var i=0; i<document.forms[0].delivery.length;++i){
    				if (document.forms[0].delivery[i].checked==true)
    					document.forms[0].delivery[i].checked = false;
    		function noSunday(){
    			for(var i=0; i<document.forms[0].sunday.length;++i){
    				if (document.forms[0].sunday[i].checked == true)
    					document.forms[0].sunday[i].checked = false;
    		//Function for copying the same data from a checkbox
    		function sameShippingInfo(){
    			if (document.forms[0].elements[5].checked == true){
    				document.forms[0].name_shipping.value = document.forms[0].name_billing.value;
    				document.forms[0].address_shipping.value = document.forms[0].address_billing.value;
    				document.forms[0].city_shipping.value = document.forms[0].city_billing.value;
    				document.forms[0].state_shipping.value = document.forms[0].state_billing.value;
    				document.forms[0].zip_shipping.value = document.forms[0].zip_billing.value;
    		//Adding magazines to the select box. -missing form subscription for adding values
    		function addMagazine() { 
    				if (document.forms[0].magazines.options[0] 
    					&& document.forms[0].magazines.options[0].value == "none") 
    					document.forms[0].magazines.options[0] = null; 
    				else { 
    					var magazine = new Option(); 
    					magazine.text = document.forms[0].elements[31].value 
    					magazine.value = document.forms[0].elements[31].value 
    					nextItem = document.forms[0].magazines.length; 
    					document.forms[0].magazines.options[nextItem] = magazine; 
    					document.forms[0].elements[31].value = ""; 
    		function deleteMagazine() { 
    			var selectedItem = 
    			if (selectedItem == -1) 
    				window.alert("You must select a magazine name in the list."); 
    		function changeMagazine() { 
    			var selectedItem = 
    			if (selectedItem == -1) 
    				window.alert("You must select a magazine name in the list."); 
    			else { 
    				.value = document.forms[0].elements[31].value; 
    				.text = document.forms[0].elements[31].value; 
    		//The above funciton is based on the values, not on the form elements, however else statement is using the [31] element.
    		//onsubmit and onreset funciton below.!.
    		function confirmSubmit(){
    					var submitForm = window.confirm("Are you sure you want to submit the form?");
    					if (submitForm != true){
    						return false;
    					else if(document.form[0].name_billing.value == ""
    						|| document.forms[0].address_billing.value == ""
    						|| document.forms[0].city_billing.value == ""
    						|| document.forms[0].state_billing.value == ""
    						|| document.forms[0].zip_billing.value == ""){
    					window.alert("You must enter your billing information.");
    					return false;
    				else if(document.forms[0].name_shipping.value == ""
    						||document.forms[0].address_shipping == ""
    						||document.forms[0].city_shipping == ""
    						||document.forms[0].state_shipping == ""
    						||document.forms[0].zip_shipping == ""){
    					window.alert("You must enter your shipping information.");
    					return false;
    				else if(document.forms[0].area.value == ""
    						||document.forms[0].exchange.value == ""
    						||document.forms[0].phone.value == ""){
    					window.alert("You must enter your telephone number");
    					return false;
    				else if(document.forms[0].password.value == ""
    						||document.forms[0].password_confirm.value == ""){
    					window.alert("You must enter a password");			
    					return false;
    				return true;
    		function confirmReset(){
    			var resetForm = window.confirm("Are you sure you want to reset the form?");
    			 if(resetForm == true){
    				return true;
    				return false;
    	<h1> Gosselin Gazette Subscription Form</h1>
    	<h2>Customer Information</h2>
    <form action="FormProcessor.html" method="get" enctype="application/x-www-form-urlencoded" onsubmit="return confirmSubmit();" onreset="return confirmReset();">
    	<table border="4">
    			<td valign="top"><h3>Billing Information</h3>
    				<p>Name<br />
    					<input type="text" name="name_billing" size="50" /></p>
    				<p>Address<br />
    					<input type="text" name="address_billing" size="50" /></p>
    				<p>Sity, State, Zip<br />
    					<input type="text" name="city_billing" size="34" />
    					<input type="text" name="state_billing" size "2" maxlength ="2" />
    					<input type="text" name="zip_billing" size="10" maxlength ="10" 
    					onchange="return checkForNumber(this.value);"/></p>
    				<p><input type="checkbox" onclick="sameShippingInfo();" />Same shipping information</p>
    			<td valign="top">
    			<h3>Shipping Information</h3>
    			<p>Name<br />
    				<input type="text" name="name_shipping" size="50" /></p>
    			<p>Adress<br />
    				<input type="text" name="address_shipping" size="50" /></p>
    				<p>City, State, Zip<br />
    				<input type="text" name="city_shipping" size="34" />
    				<input type="text" name="state_shipping" size="2" maxlength="2"/>
    				<input type="text" name="zip_shipping" size="2" maxlength="10"
    				onchange="return checkForNumber(this.value);"/></p>
    				<p>(<input type="text" name="area" size="3" maxlength="3" onchange="return checkForNumber(this.value);" />)
    				<input type="text" name="exchange" size="3" maxlength="3" onchange="return checkForNumber(this.value);"/>
    				<input type="text" name="phone" size="4" maxlength="4" onchange="return checkForNumber(this.value);"/></p>
    		<p>Enter a password for subscription managing:</p>
    		<p><input type="password" name="password" size="25"/></p>
    		<p>Confirm Password:</p>
    		<p><input type="password" name="password_confirm" size="25" onblur="confirmPassword();" /></p>
    	<h3>Delivery Rates</h3>
    	<table border="0">
    		<colgroup align ="left" width="100" />
    		<colgroup span="4" align="center" width="100" />
    			<th>4 weeks</th>
    			<th>13 weeks</th>
    			<th>26 weeks</th>
    			<th>52 weeks</th></tr>
    			<td><input type="radio" name="delivery" value="12.60" onclick="noSunday();"/>$12.60</td>
    			<td><input type="radio" name="delivery" value="40.95" onclick="noSunday();"/>$40.95</td>
    			<td><input type="radio" name="delivery" value="81.90" onclick="noSunday();"/>$81.90</td>
    			<td><input type="radio" name="delivery" value="156.00" onclick="noSunday();"/>$156.00</td></tr>
    			<tr><td><strong>Every Day</strong></td>
    			<td><input type="radio" name="delivery" value="13.56" onclick="noSunday();" />$13.56</td>
    			<td><input type="radio" name="delivery" value="44.07" onclick="noSunday();"/>$44.07</td>
    			<td><input type="radio" name="delivery" value="88.14" onclick="noSunday();"/>$88.14</td>
    			<td><input type="radio" name="delivery" value="159.74" onclick="noSunday();"/>$159.74</td></tr>
    			<p><strong>Sundays Only ($3.50 per week)</strong>
    			<input type="radio" name="sunday" value="weekly" onclick="noDelviery();" />
    				Bill me weekly
    			<input type="radio" name="sunday" value="monthly" onclick="noDelivery();" />
    				Bill me monthly</p>
    			<p>Do you subscribe to any other newspapers?</p>
    			<p><input type="checkbox" name="newspapers" value="nytimes" /> New York Times<br />
    			<p><input type="checkbox" name="newspapers" value="bostonglobe" /> Boston Globe<br />
    			<p><input type="checkbox" name="newspapers" value="sfchronicle" /> San Fransisco Chronicle<br />
    			<p><input type="checkbox" name="newspapers" value="miamiherald" /> Miami Herald<br />
    			<p><input type="checkbox" name="newspapers" value="other" /> Other <br />
    			<p>Magazine <input type="text" size="68" /></p> 
    			<p><input type="button" value="Add Magazine" onclick="addMagazine();" style="width: 120px" /> <input type="button" value="Delete Magazine" onclick="deleteMagazine()" style="width: 120px" /> 
    			<input type="button" value="Clear List" onclick="document.forms[0].magazines.options.length = 0;" 
    			style="width: 120px" /> <input type="button" value="Change Magazine" onclick="changeMagazine()" style="width: 120px" /></p>
    			<p><select name="magazines" multiple="multiple" size="10" style="width: 500px"> 
    			<option value="none">Enter the magazines you subscribe to</option> 
    			<p><input type="image" alt="Graphical image of a subscribe button" src="subscribe.gif" /></p>
    			<p><input type="reset" /></p>

  2. #2
    Join Date
    Mar 2013
    I am excluding the top of the document because of the limitation. I believe there are more mistakes but something is missing and I cant find the error. Thank you

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