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JavaScript - Return True Not Working In This Script.. Any Ideas?
hi guys, maybe im being stupid but any ideas why this doesnt seem to work:
Code: function checkSCItems() { //check sccost not blank due to ajax need to do lookup
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null) {
alert ("Browser does not support HTTP Request");
return;
}
var params = "?scnumber=" + escape(document.getElementById('scnumber').value);
var url="_check_scitems.php";
url=url+params;
ajaxedInner = "";
xmlHttp.open("GET",url,true);
xmlHttp.setRequestHeader("If-Modified-Since", "Fri, 31 Dec 1999 23:59:59 GMT");
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.send(null);
xmlHttp.onreadystatechange = function() {
if (xmlHttp.readyState == 4){
if (xmlHttp.status == 200) {
var checkSCItemsResponse = xmlHttp.responseText;
if(checkSCItemsResponse == 'found') {
return true;
} else {
window.location.hash = 'scpricebuildup2';
alert('You must first create some cost items');
return false;
}
} else {
alert('There was a problem, please try again, or contact the Administrator');
return false;
}
}
}
}
im calling this and if it returns true another function is called but for some reason the 2nd function never seems to happen. (that function works fine so it cant be that - if i just set this function to return true everything works fine too) its being called like so: Code: <a href='javascript:;' onclick="if(checkSCItems() && validateText(document.subcontract_order,['scdate','scworks','scpayment','scfirstpayment','scpaymentinterim','scbalance','scretentionat','sccommence','sccompletion','sclabour','scplant','scmaterials']) && validateDate(document.subcontract_order, ['scdate','scfirstpayment','scbalance','sccommence','sccompletion']) && validateSelectNoBlank(document.subcontract_order, ['trading_name'])){window.open('subcontract_order_print.php?id=<?php echo writeIfSet($id) ?>')}">
is there some issue with ajax and return true? do i need to tell it to call another function that calls return true etc? Similar TutorialsI don't understand the logic of Break, Return False, Return True. It was never really covered in our college class, and I see everyone using it. I got an A in the class, if that 'proves' that I really tried to apply myself. NOTE: I understand what the function is doing. I just don't understand WHEN to use break, return false or return true if the the translator can determine the conditional statements. PHP Code: function submitForm(){ var ageSelected = false; for (var i=0; i<5; ++1){ if (document.forms[0].ageGroup[i].checked == true) { ageSelected = true; break; } } if (ageSelected == false){ window.alert("You must select your age group"); return false; } else return false; } if the the translator can determine the conditional statements, why not write it like this: PHP Code: function submitForm(){ var ageSelected = false; for (var i=0; i<5; ++1){ if (document.forms[0].ageGroup[i].checked == true) { ageSelected = true; break; // what's the point for the 'break'? Won't the rest of the code be ignored since it passed the first condition? } } if (ageSelected == false){ window.alert("You must select your age group"); return false; } // why not leave the last else out? is it just a 'safety' catch, in case something other than true or false is inputted? else return false; // what's the point? } Questions: Why use return true, if the translator knows it's ture? Why use "return false" if the translator knows it's false and the alert window has already gone up? why not use "break" to stop the code? Why use the "return false" at the end "else" statement? Hi room, Hey, I opened up the source code for this page in google chrome and since i'm learning javascript, i wanted see if i could "read" it and figure out what was going on. I'm am having the hardest time understanding "return false" and "return true". Could someone step me through this via interpreting this code (in bold typeface): Code: var DefaultValue = 'Search';
function clearSearch() {
if (document.searchForm.q.value == DefaultValue) {
document.searchForm.q.value = '';
}
}
function validateSearchHeader() {
if ( document.searchForm.q.value == '' || document.searchForm.q.value.toLocaleLowerCase() == DefaultValue.toLocaleLowerCase() ) {
alert('Please enter at least one keyword in the Search box.');
document.searchForm.q.focus();
return false;
}
return true;
}
Thanks! Got a timing issue with sending a URI string out to a server side script right before a client side form validation process returns true.. The problem is that the return true gets called to quickly for the submission of the URI string to be completed. So my question is, might there be a way to mix a return and a setTimeout? If so, could some one give a an example? Thanks! hi peeps, this one might be confusing, if so i apologise! below is a cut down version of the script calling a function: Code: function updateStockRequest(thestatus,theform,thedate) {
if(thestatus == 'locked') {
if(checkStockRequested()) {
if(confirm('Are you sure you want to send for processing?\nYou will not be able to add any more stock!')) {
document.getElementById('status').value = 'locked';
document.forms[0].submit();
}
} else {
alert('You must request some stock first!');
}
}
}
the following is the function being called: Code:
function checkStockRequested() { //check to see if stockrequest has items added!!!
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null) {
alert ("Browser does not support HTTP Request");
return;
}
var params = "?theuid=" + escape(document.getElementById('uid').value);
var url="_check_stockrequest.php"
url=url+params;
ajaxedInner = "";
xmlHttp.open("GET",url,true);
xmlHttp.setRequestHeader("If-Modified-Since", "Fri, 31 Dec 1999 23:59:59 GMT");
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.send(null);
xmlHttp.onreadystatechange = function() {
if (xmlHttp.readyState == 4){
if (xmlHttp.status == 200) {
responsestring = xmlHttp.responseText.replace(/^\s+|\s+$/g, '');
alert(responsestring);
if(responsestring == 'true') {
return true;
} else {
return false;
}
}
}
}
}
in the testing the function is alerting 'true' but the calling function still fails and says you need to add stock. i must admit ive rarely used the return syntax so maybe im doing it wrong?!? ive tried many variants such as creating a variable and assigning it the string 'true' etc and then using if(checkStockRequested == 'true') but it still fails. help!!!!!!!!! I am trying to figure out that if the function "xmlhttp.onreadystatechange=function()" returns true the whole function "function checkUser(str)" should return true as well....so not sure how to do it. i have banged my head since long so please advise! Here is the code below: -------------------------------------------------------- function checkUser(str) { var sp = document.getElementById("msgs"); if (str=="") { document.getElementById("msgs").innerHTML="Username cannot be empty."; return false; } if (str.length <= 6) { document.getElementById("msgs").innerHTML="Username cannot be less than 6 characters and must not start with a number or a special value"; return false; } if (window.XMLHttpRequest) { //code for IE7+, firefox, chrome, opera, safari xmlhttp=new XMLHttpRequest(); } else { //code for old IE xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4 && xmlhttp.status==200) { if (xmlhttp.responseText === 'FOUND') { sp.style.color = "red"; sp.innerHTML = "[ERROR]: The username \"" + str + "\" already exist. Please try a different name."; return false; } else if (xmlhttp.responseText === 'NOT FOUND') { sp.style.color = "blue"; sp.innerHTML = "Username: VALID"; return true; } } } xmlhttp.open("GET", "checkUser.php?q="+str,true); xmlhttp.send(); } Hi All, This is in ASP.Net Im creating a task loggin system and this allows the user to raise tasks and update them, im using javascript for validation and if the fields are empty it then changes the fields back ground to Red which is fine but then it goes on to update the data in SQL which i dont want, any suggestions or how i can achieve no post back is the result from the function is False (for fields in error) Html Code where im calling the function Code: <asp:button runat="server" id="btnChangeCommentsAuth" CSSclass="RaiseButton" OnClientClick="CommentsCheck('MainDisplayContentChange_txtAuthCommentsArea');" PostBackUrl="~/RaiseTaskChange.aspx" Text="Auth" />
Javascript function Code: function CommentsCheck(comments)
{
var com;
var result = new boolean();
com = document.getElementById(comments);
if (document.getElementById(comments).value == '') {
com.style.backgroundColor = "#B20635";
result = 0;
}
else
{
result = 1
}
}
Thanks in Advance look forward to your reply. Let me first say I am not a java programmer but I can follow the tutorials and get some things to work. Here I am trying to create a password protected page, realizing the level of security is not very high. This page of code, link1.html, will be blank and if the correct password is entered then I want to automatically link to another page, barcs.html. I simply cannot find a way to do it.....Thanks Code: <html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="content-type">
<title>Psw test link 1</title>
<script language="JavaScript">
<!--hide
var password;
var pass1="cool";
var pass2="awesome";
var pass3="geekazoid";
password=prompt('Please enter your password to view this page!',' ');
if (password==pass1 || password==pass2 || password==pass3)
alert('Password Correct! Click OK to enter!');
else
{
window.location="http://www.acma-rc.com/";
}
//-->
</script>
</head>
<body>
This is link1.html<br>
</body>
</html>
Hello, I'm a novice with java script and I can't figure out why my script will work locally, but not live. Here is the link. http://www4.uwm.edu/recsports/ There is supposed to be a rotating slideshow in the header, but it's just a black box. Thanks! Hi all, I have a page built with asp.net that includes some "imagebutton"s within a form. These render as input tags with the type set to image. I ahve the onclick attribute set to run a custom javascript function and return false, so in the fully rendered page I get something like the following: Code: <input type="image" name="ctl00${cut}" tabindex="-1" title="Click to look up the details" src="images/load_details.png" onclick="LoadDetails(); return false;" style="border-width:0px;" />
This has worked fine for the few months the code has been in place and then just recently (within the last few days) it has stopped working for a single network user. They click on the link and instead of the function executing (and the AJAX loading details into the page) the form submits. This makes me think that the "return false" simply isn't executing. The user says that they haven't changed any settings or anything that may cause this issue... The browser being used throughout the company is IE8 under Windows XP. I have checked the version being used on their comptuer and it is 8.0.6001.18702, which is the same version as the one installed on my local machine... which is working fine. Another user has logged into the computer being used by the user with the issues and it works fine for the second user. Also, the user having the issues has logged into a different computer on the network and was still having the same problems. I think I've included all the details, but I'll happily provide any required information. Anyone have any ideas? Hi all i have this code
Code: <TR id="tr1" onClick="var ret_val = clickedfun(this.id)" /> , and this javacript code Code: <script language="javascript">function clickedfun(tid) {var elemento = document.getElementById(tid);if(confirm("Tem a certeza que quer remover esta fila?")){elemento.style.visibility='hidden';var numero=tid.substring(2,tid.length);return numero;}}</script>;
i want to get the return value of the javascript function to use in database for deletion of that value please help i'm usin jsp and java classes. Thanks guys. Finally got my favorite system to work but there is 1 little detail left... When an item is in the favorites, the php file echoes: "Already Favorited!" how can I get that response? I have no experience with js whatsoever.. first time I used it. (obvious since I use code that i found on the tubes and modded it) This is my code: PHP Code: /* ---------------------------- */ /* XMLHTTPRequest Enable */ /* ---------------------------- */ function createObject() { var request_type; var browser = navigator.appName; if(browser == "Microsoft Internet Explorer"){ request_type = new ActiveXObject("Microsoft.XMLHTTP"); }else{ request_type = new XMLHttpRequest(); } return request_type; } var http = createObject(); var nocache = 0; function insert() { // Optional: Show a waiting message in the layer with ID login_response document.getElementById('insert_response').innerHTML = "Adding..." // Required: verify that all fileds is not empty. Use encodeURI() to solve some issues about character encoding. var user_id= encodeURI(document.getElementById('user_id').value); var item_id = encodeURI(document.getElementById('item_id').value); var cat_id = encodeURI(document.getElementById('cat_id').value); // Set te random number to add to URL request nocache = Math.floor(Math.random()); // Pass the login variables like URL variable http.open('get', 'http://animekyun.com/scripts/favorite.php?user_id='+user_id+'&item_id=' +item_id+'&cat_id=' +cat_id); http.onreadystatechange = insertReply; http.send(null); } function insertReply() { if(http.readyState == 4){ var response = http.responseText; document.getElementById('insert_response').innerHTML = 'Favorited'+response; } } Apparently this http.responseText is not working propperly since it's not returning anything I am building a wordpress theme that utilizes a theme options panel. The theme has a area where someone can enter in their email address, and when they do a Thank You message displays. One of the sections in the theme options panel allows the users to modify that message. Right now the message is formated like this: "Thank you for your interest!<br />As soon as as we are ready we will send you an email with all the details." and the page source shows this: Code: $('#right').html("<div id='submitted'></div>");
$('#submitted').html("Thank you for your interest!<br />As soon as as we are ready we will send you an email with all the details.")
.hide()
.fadeIn(1000, function() {
});
(i bolded the thank you message) now the form functions properly the way it should and the thank you message appears accordingly when someone submits their email. However, if the person modifies the message via the theme options panel and uses "Enter" for a return or line break the code looks like this: Code: $('#right').html("<div id='submitted'></div>");
$('#submitted').html("Thank you for your interest!
As soon as as we are ready we will send you an email with all the details.")
.hide()
.fadeIn(1000, function() {
});
and this causes the form not to function properly. The thank you message will not show up. Is there a way to fix the java code so a person can use "Enter" if they choose to? Ive narrowed it down to this one section of the javascript. If you need the entire script I can post it. Any help is greatly appreciated. Thank you for your time. so my code is supposed to retrieve three values from a flash element. now it works fine, but when it retrieves a 0 from any of the three valuse, it goes all haywire.... how could i put in a statement or command that if it returns 0, that all it will display is a 0 instead of returning "NaN"? But since all three valuse added together are supposed to equal 100% i have to run the numbers through a little bit of division and rounding after it gets the value of each one. Code: var techfaction = document.getElementById('tfaction');
var natfaction = document.getElementById('nfaction');
var magfaction = document.getElementById('mfaction');
retrFaction();
roundNumber();
function retrFaction()
{
var values = document.documentElement.innerHTML.match(/factiontrianglesmall\.swf\??.*\\x26link/i)[0].match(/[0-9.]{4,9}/ig);
techfaction.innerHTML = roundNumber(values[0] / 30, 1) + '%';
natfaction.innerHTML = roundNumber(values[1] / 30, 1) + '%';
magfaction.innerHTML = roundNumber(values[2] / 30, 1) + '%';
}
function roundNumber(num, dec)
{
var result = Math.round(num*Math.pow(10,dec))/Math.pow(10,dec);
return result;
}
Hey everyone here is my code for looking up a city, and state by zip code. I am getting no errors and i believe it should work, but the code does not seem to want to function. Any ideas? Here is my code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>City and State Lookup</title> <style type="text/css"> h1 { font-family:Arial; color:navy; } p, td { font-family:arial; font-size:11px; } </style> <script type="text/javascript"> /* <![CDATA[ */ var httpRequest = false; function getRequestObject() { try { httpRequest = new XMLHttpRequest(); } catch (requestError) { try { httpRequest = new ActiveXObject ("Msxm12.XMLHTTP"); } catch (requestError) { try { httpRequest = new ActiveXObject ("Microsoft.XMLHTTP"); } catch (requestError) { window.alert("Your browser does not support AJAX!"); return false; } } } return httpRequest; } function updateCityState() { if (!httpRequest) httpRequest = getRequestObject(); httpRequest.abort(); httpRequest.open("get","zip.xml"); httpRequest.send(null); httpRequest.onreadystatechange=getZipInfo; } function getZipInfo() { if (httpRequest.readyState==4 && httpRequest.status == 200) { var zips = httpRequest.responseXML; var locations = zips.getElementsByTagName("Row"); var notFound = true; for (var i=0; i<locations.length; ++i) { if (document.forms[0].zip.value == zips.getElementsByTagName( "ZIP_Code")[i].childNodes[o].nodeValue) { document.forms[0].city.value = zips.getElementsByTagname( "City") [i].childNodes[0].nodeValue; document.forms[0].state.value = zips.getElementByTagName( "State_Abbreviation")[i].childNodes[0].nodeValue; notFound = flase; break; } } if (notFound) { window.alert("Invalid ZIP code!"); document.forms[0].city.value = ""; document.forms[0].state.value = ""; } } } /* ]]> */ </script> </head> <body> <h1>City and State Lookup </h1> <form action=""> <p>Zip code <input type="text" size="5" name="zip" id="zip" onblur="updateCityState()" /></p> <p>City <input type="text" name="city" /> State <input type="text" size="2" name="state" /></p> </form> </body> </html> We have an ASP website which everything works fine in pre-IE8, firefox and even our iPhone browsers but not IE8. I know what the problem is and where the problem is but don't know how to fix it, it should be pretty simple but I am not a developer...just trying to fix this one problem When the page loads it is supposed to automatically fill in a text box with the word: No This is the javascript that is supposed to do that: Code: <script type="text/javascript">
function statusdefault(oSel) {
status = 'No';
document.getElementById('theLabel5').value = status;
}
</script>
and this shows the onload line: Code: <body onload="statusdefault(this)" bgcolor="#FFFFFF" background="images/background_stripe.jpg" text="#000000" link="#CCCCCC" vlink="#CCCCCC" alink="#CCCCCC" leftmargin="0" topmargin="10" marginwidth="0" marginheight="10"> <form action="<%=MM_editAction%>" method="POST" name="frmDetail" id="frmDetail"> additionally when someone changes a selection in one of the comboboxes it should change the textbox to: Yes Here is the code for that (which also does not work): Code: <script type="text/javascript">
function statusupdated(oSel) {
status = 'Yes';
document.getElementById('theLabel5').value = status;
}
</script>
which of course gets triggered by this: Code: <select name="lstQueue" id="select" onChange="statusupdated(this)"> This is the code for the said textbox: Code: <input name="txtStatusUpdated" type="text" id="theLabel5" value="<%=(rsQ.Fields.Item("StatusUpdated").Value)%>">
The error I get in IE8 is "This page cannot be displayed..." and give a http500 error with no other info. It looks like this javascript code was copied and pasted throughout this same ASP page and altered to do different things. All of the other scripts like this one work fine so I know it is just something in these particular ones that have a problem. Thanks for any help that can be given!!! Scott Hey, I'm a total noob when it comes to javascript. and manged to make this code for a different forum: Code: //This script was created by TROPAFLIGHT2
var d=new Date();
var theDay=d.getDay();
switch (theDay)
{
case 1:
document.write("<EMBED src="http://bit.ly/Ky9R5F" autostart=true loop=true volume=100 hidden=true>");
break;
case 2:
document.write("<EMBED src="http://bit.ly/Ky9R5F" autostart=true loop=true volume=100 hidden=true>");
break;
case 3:
document.write("<EMBED src="http://bit.ly/JGUdU9" autostart=true loop=true volume=100 hidden=true>");
break;
case 4:
document.write("<EMBED src="http://bit.ly/JMVvl0" autostart=true loop=true volume=100 hidden=true>");
break;
case 5:
document.write("<EMBED src="http://bit.ly/JVq7yb" autostart=true loop=true volume=100 hidden=true>");
break;
case 6:
document.write("<EMBED src="http://bit.ly/J7fvwY" autostart=true loop=true volume=100 hidden=true>");
break;
default:
document.write("<EMBED src="http://bit.ly/J2mc7a" autostart=true loop=true volume=100 hidden=true>");
}
That code obviously didn't work so I manged to fix certain things: Code: //This script was created by TROPAFLIGHT2
var d=new Date();
var theDay=d.getDay();
switch (theDay)
{
case 1:
document.write;"(<EMBED src="//bit.ly/Ky9R5F" autostart=true loop=true volume=100 hidden=true>)";
break;
case 2:
document.write;"(<EMBED src="//bit.ly/Ky9R5F" autostart=true loop=true volume=100 hidden=true>)";
break;
case 3:
document.write;"(<EMBED src="//bit.ly/JGUdU9" autostart=true loop=true volume=100 hidden=true>)";
break;
case 4:
document.write;"(<EMBED src="//bit.ly/JMVvl0" autostart=true loop=true volume=100 hidden=true>)";
break;
case 5:
document.write;"(<EMBED src="//bit.ly/JVq7yb" autostart=true loop=true volume=100 hidden=true>)";
break;
case 6:
document.write;"(<EMBED src="//bit.ly/J7fvwY" autostart=true loop=true volume=100 hidden=true>)";
break;
default:
document.write;"(<EMBED src="//bit.ly/J2mc7a" autostart=true loop=true volume=100 hidden=true>)";
}
Problem is, it still doesn't work and I don't really know why. I've stared at it for a long time but the problem didn't click like last time. Any help at all would be appreciated. Thanks in advance, me. Hi all, thanks in advance for any help. For a lot of years now I've used a javascript that does a simple rollover image swap, but also changes another alternate image at the same time. It's always worked like a charm. Lately I realized that the script no longer works in IE, though it used to in older versions of IE (I think it stopped working in anything past IE 7). It still works fine in Firefox, Safari, etc. I haven't been able to find a good alternative for this script, so I'm really trying to get it to work again in IE, but so far no luck. Here's the link to the actual script itself. http://www.jsmadeeasy.com/javascript...nges/index.htm (you can see that even the example on this page doesn't work in IE anymore) You can also see it in action at this site: http://www.augustroad.com/ (notice when you roll over the menu bar an alternate image appears in FF, but not in IE). Again, thanks in advance for any help. I truly appreciate it! Jordan Hey ! You know I'm now trying to use that light box embed contact form in my page http://uniwebmart.com/roshan and that fade in fade out effect as well which you can see now in LCD. But when I use the java script of that embed contact form in lightbox, my previous script of fading doesn't work. <script type="text/javascript" src="scripts/prototype.js"></script> <script type="text/javascript" src="scripts/lightbox.js"></script> <script type="text/javascript" src="js/jquery.min.js"></script> <script type="text/javascript" src="js/fadeslideshow.js"></script> bold one is newly added script. Can't figure out the mistake. Can you please help me once again people??? Hi All, I am using one script which is functioning properly incase of IE but incase of Mozilla evenif the shift key is pressed and any character key is pressed then it is displaying Caps Lock is On. can anyone tell how can I make it Mozilla and IE compatible. I'm helping out my friend complete her site. check it out he http://themodline.com/clients/jcevent when you head over to the portfolio section the the lightbox script doesnt work properly. but if you just go to http://themodline.com/clients/jcevent/portfolio.html -it works fine. are the scripts mixing up? i made sure i got the correct codes. i made sure the script files are correctly linked. check out my scripts. they are zipped he http://www.themodline.com/clients/jcevent/scripts.zip thanks for the help guys. hope this makes sense! |
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