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JavaScript - Help With Declaring Event Handlers
Today I have been embedding some Google Maps on my website. When I got around to putting in event handlers for markers on the map I ran into some trouble with how to declare them in the way I have the map setup.
The issue is that I have an array, label, and want to indicate a single element from that array to the event handling function. But the declaration of this seems tricky. The code in question are the two lines like this one in the script below: GEvent.addListener(marker[i], 'mouseover', function() { map.addOverlay(label[i]); }); Specifically, the problem is with function() { map.addOverlay(label[i]); because I don't want label[i] to be used, but whatever value i has should be substituded in there. But since this is a function being declared and not actually executed the value for i does not get used. I've been able to get it to work by using eval() to force the actual value of i into the code, like so: eval('GEvent.addListener(marker[i], \'mouseout\', function() { map.removeOverlay(label['+i+']); });'); but am wondering if there is a better solution? Here's a section of my script showing the issue in context. You can see that i is incremented with a loop and used as the index of a few arrays. Code: for (i = 0; i < buildings.length; i++) {
icon[i] = new GIcon();
icon[i].image = 'http://labs.google.com/ridefinder/images/mm_20_red.png';
icon[i].iconSize = new GSize(12, 20);
icon[i].iconAnchor = new GPoint(6, 20);
map.addOverlay(marker[i] = new GMarker(new GLatLng(buildings[i][1], buildings[i][2]), {icon:icon[i]}));
label[i] = new ELabel(new GLatLng(buildings[i][1], buildings[i][2]), '<nobr>'+buildings[i][3]+'<\/nobr>', 'maplabel');
GEvent.addListener(marker[i], 'mouseover', function() { map.addOverlay(label[i]); });
GEvent.addListener(marker[i], 'mouseout', function() { map.removeOverlay(label[i]); });
}
Similar Tutorialsgood day: I'm using an ajax script that receives a value into an input box and thus performs a function. I need to invoke the function immediately after the input box has a value. Currently the box has to lose focus in order for the function to work. What is the correct event handler for this to work? I have this now PHP Code: onkeyup="showResult2(this.value)" which is obviously not what I need. This is the ajax PHP Code: <script type="text/javascript"> function showResult2(strs) { if (strs.length==0) { document.getElementById("livesearch2").innerHTML=""; document.getElementById("livesearch2").style.border="0px"; return; } if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4 && xmlhttp.status==200) { document.getElementById("livesearch2").innerHTML=xmlhttp.responseText; document.getElementById("livesearch2").style.border="1px solid #A5ACB2"; } } xmlhttp.open("GET","getOilChangeDate.php?q="+strs,true); xmlhttp.send(); } </script> Any thoughts on this! Mossa hi, i need to be able to take the values from two text boxes and change the location of a sprite on my canvas, i've searched the internet and it doesnt really explain how to do it for me. here is my code: x: <input type="text" name="x" id="x"/><br /> y: <input type="text" name:"y" id="y"/><br /> <input type="submit" value="Submit" onClick="ChangeCo()" /><br /> function ChangeCo() { } and i need the function to take the x and y values from the text boxes and change the values of my variables: var block_x; var block_y; block_x = 290; block_y = 70; Thankyou in advance Hi, I'm having two issues: First, is there an easier way for my showValue function to display the image file name without running a bunch of if statements? I tried doing something like document.getElementById('imgFile').value = imgArray[n]; but that did not seem to work. Second, I'm trying to have the image file name change in my textbox when I click any button. I've accomplished this with onblur, but that only works if I click on the textbox. I'd like it to just change automatically. Thanks for you help! Code:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
<head>
<title>Asn4CStartup.htm by Heath Parish</title>
<style type="text/css" >
h1, h2, h3 {font-family: 'arial black';}
.controls { font-family: 'arial black'; font-size:10pt;}
</style>
<script type="text/javascript">
/* <![CDATA[ */
// Note: variables declared inside a function
// using the var keyword are all local variables. It means that these
// variables are only known inside the function. Other functions cannot see
// the values.
// On the other hand if a variable is declared outside any function, these are global
// variables. The values of global variables are available in all other functions.
// Other function can change the values of global variables.
// Declare a global var n:
var n=0; // we will use this global variable to keep track of exactly which element of the array
// is being displayed now. When the user clicks Next button, we will add 1 to n and
// then display the image file in the nth element of the array
// Declare a global array that will contain the names of image files.
var imgArray = new Array();
// The following function will be triggered on the onload event of the page.
function fillArray()
{
// alert ("Hello on load");
imgArray[0]="Bus1.jpg";
imgArray[1]="Bus2.jpg";
imgArray[2]="Fam1.jpg";
imgArray[3]="Fam2.jpg";
imgArray[4]="Honey1.jpg";
imgArray[5]="Honey2.jpg";
imgArray[6]="Map1.png";
// for ( i in imgArray)
// alert (imgArray[i]);
}
function showNext()
// This function will be triggered on click of the Next button
{ // alert ("Hello showNext");
// alert(n);
n = n+1;
//alert (n);
if (n > imgArray.length-1)
{ alert ('You are already on the last image');
n = n-1;
}
else
document.getElementById('imgPic').src='images/'+imgArray[n];
} // end showNext()
function showPrevious()
// This function will be triggered on click of the Previous button
{
// alert("Hello Previous");
// alert(n);
n = n-1;
// alert (n);
if (n < 0)
{ alert ('You are already at the first image');
n = n+1;
}
else
document.getElementById('imgPic').src='images/'+imgArray[n];
} // end showPrevious()
function showFirst()
// This function will be triggered on click of the First button
{
// alert("Hello First");
// alert (n);
if (n == 0)
{ alert ('You are already at the first image');
}
else
document.getElementById('imgPic').src='images/'+imgArray[0]; n = 0;
} // end showFirst()
function showLast()
// This function will be triggered on click of the Last button
{
// alert("Hello Last");
// alert(n);
// alert (n);
if (n >= 6)
{ alert ('You are already at the last image');}
else
document.getElementById('imgPic').src='images/'+imgArray[6]; n=6;
} // end showLast()
function showValue()
// This
{
if (n == 0) { document.getElementById('imgFile').value = "Bus1.jpg"}
else if (n == 1) { document.getElementById('imgFile').value = "Bus2.jpg"}
else if (n == 2) { document.getElementById('imgFile').value = "Fam1.jpg"}
else if (n == 3) { document.getElementById('imgFile').value = "Fam2.jpg"}
else if (n == 4) { document.getElementById('imgFile').value = "Honey1.jpg"}
else if (n == 5) { document.getElementById('imgFile').value = "Honey2.jpg"}
else { document.getElementById('imgFile').value = "Map1.png"}
}
/* ]]> */
</script>
</head>
<body onload="fillArray();">
<div>
<h1> Asn4CStartup.htm by Mesbah Ahmed </h1>
<h2>Windsurf Image Navigation </h2>
<h2>Name of the Image file shown below:
<input class = "controls" readonly="readonly" type="text" id="imgFile" size ="25" onblur="showValue();"/> </h2>
<img id="imgPic" src = "images/Bus1.jpg" alt="picture" width="500px" height="350px" /> <br/>
<input type="button" value="Next" class="controls"
onclick="showNext();" />
<input type="button" value="Previous" class="controls"
onclick="showPrevious();" />
<input type="button" value="First" class="controls"
onclick="showFirst();" />
<input type="button" value="Last" class="controls"
onclick="showLast();" />
<p>
<img src="http://www.w3.org/Icons/valid-xhtml11.png"
alt="Valid XHTML 1.1!" height="31px" width="88px" />
<img src="http://jigsaw.w3.org/css-validator/images/vcss-blue.png"
alt="Valid CSS!" height="31px" width="88px" />
</p>
</div>
</body>
</html>
can someone please explain the code in this link. Just this small bit since i seen it in a few different places. it starts off with if (!e) ... please explain wth that means thank you so much heres the link - http://www.w3schools.com/js/tryit.as...ent_srcelement I have tried many conventional methods trying to get my javascript to work without using inline event handlers and for some reason the way my teacher shows us how to do it is not working for me. Any help would be much appreciated. Here is were I left off. The top part of this code is were I was trying to get the event handler to work. Code:
function setClock() {
document.getElementById('custname').focus();
digitalClock();
}
var digital;
function stop(){
clearTimeout(digital);
}
function digitalClock(){
var newDate = new Date();
var hour, minute;
var second;
var time = " ";
hour = newDate.getHours();
minute = newDate.getMinutes();
second = newDate.getSeconds();
if (hour <= 9) hour = "0" + hour;
if (minute <= 9) minute = "0" + minute;
if (second <= 9) second = "0" + second;
time += hour + ":" + minute + ":" + second;
document.getElementById('dClock').value = time;
digital = setTimeout("digitalClock()", 1000);
}
var validated=true;
function validateForm(f) {
validated=isEmpty(f.custname, "customer name");
if (!validated) {
return validated;
}
validated=isEmpty(f.phone, "phone");
if (!validated) {
return validated;
}
validated=isEmpty(f.email, "email");
if (!validated) {
return validated;
}
validated=isEmpty(f.address, "address");
if (!validated) {
return validated;
}
validated=isEmpty(f.city, "city");
if (!validated) {
return validated;
}
validated=isSelect(f.state);
if (!validated) {
return validated;
}
validated=isEmpty(f.zip, "zip");
if (!validated) {
return validated;
}
validated=isNumber(f.qty);
if (!validated) {
return validated;
}
validated=checkRadio(f.pizza);
if (!validated) {
return validated;
}
return validated;
}
var radPizza = 0;
function checkRadio(radiobuttons) {
var i=0;
while (i<=4 && !radiobuttons[i].checked) {
if (i==4) {
alert("Please choose a Pizza.");
return false;
}
i++;
}
return true;
}
function isEmpty(textbox, textString) {
//match null or blank space
if (textbox.value.match(/^\s*$/) || textbox.value.match(/^null$/)) {
alert("Data is not valid for " + textString);
textbox.style.backgroundColor = "#f4f8b4";
textbox.focus();
return false;
}
else {
textbox.style.backgroundColor = "white";
}
if (textString=="customer name") {
//does not match name format
if (!textbox.value.match(/^[\w\.\']{2,}([\s][\w\.\']{2,})+$/)) {
alert("Data is not valid for " + textString);
textbox.style.backgroundColor = "#f4f8b4";
textbox.focus();
return false;
}
}
if (textString=="email") {
//does not match email format
if (!textbox.value.match(/^[a-zA-Z]{1}[a-zA-Z0-9]+(\.|\_)?[a-zA-Z]+@[a-zA-Z]{1}[a-zA-Z0-9]{0,62}\.(com|net|org)$/)) {
alert("Data is not valid for " + textString);
textbox.style.backgroundColor = "#f4f8b4";
textbox.focus();
return false;
}
}
if (textString=="address") {
//does not match address format
if (!textbox.value.match(/^[a-zA-Z0-9\s,'-]*$/)) {
alert("Data is not valid for " + textString);
textbox.style.backgroundColor = "#f4f8b4";
textbox.focus();
return false;
}
}
if (textString=="city") {
//does not match city format
if (!textbox.value.match(/^[A-Za-z. ]+$/)) {
alert("Data is not valid for " + textString);
textbox.style.backgroundColor = "#f4f8b4";
textbox.focus();
return false;
}
}
if (textString=="phone") {
//does not match phone format
if (!textbox.value.match(/^\(?(\d{3})\)?[-](\d{3})[-](\d{4})$/) || textbox.value.match(/^xxx-xxx-xxxx$/)) {
alert("Please enter a correct phone number.");
textbox.style.backgroundColor = "#f4f8b4";
textbox.focus();
return false;
}
}
if (textString=="zip") {
//does not match zip format or starting format
if (!textbox.value.match(/^(?!0{5})(\d{5})(?!-?0{4})(-?\d{4})?$/) || textbox.value.match(/^xxxxx or xxxxx-xxxx$/)) {
alert("Please enter a correct zip number.");
textbox.style.backgroundColor = "#f4f8b4";
textbox.focus();
return false;
}
}
return true;
}
function isSelect(selected) {
if (selected.value=="Select State") {
alert("Please select a state.");
selected.style.backgroundColor = "#f4f8b4";
selected.focus();
return false;
}
else {
selected.style.backgroundColor = "white";
}
return true;
}
function isNumber(textbox) {
//match negative number and not equal to a number
if (textbox.value.match(/^-\d*\.{0,1}\d+$/) || !textbox.value.match(/^((\d+(\.\d *)?)|((\d*\.)?\d+))$/)) {
alert("Drinks value cannot be negative and has to be a number.");
textbox.style.backgroundColor = "#f4f8b4";
textbox.focus();
textbox.value=0;
return false;
}
return true;
}
function calcPizza() {
var rad = document.getElementsByName('pizza');
for (var i=0; i<rad.length;i++) {
if (rad[i].checked) {
radPizza = parseFloat(rad[i].value);
}
}
if (document.getElementById('cheese').checked) {
var extraCheese = parseFloat(document.getElementById('cheese').value);
}
else {
extraCheese = 0;
}
if (document.getElementById('mushrooms').checked) {
var addShrooms = parseFloat(document.getElementById('mushrooms').value);
}
else {
addShrooms = 0;
}
if (document.getElementById('anchovies').checked) {
var addAnchovies = parseFloat(document.getElementById('anchovies').value);
}
else {
addAnchovies = 0;
}
if (document.getElementById('wings').checked) {
var addWings = parseFloat(document.getElementById('wings').value);
}
else {
addWings = 0;
}
if (document.getElementById('dessert').checked) {
var addDessert = parseFloat(document.getElementById('dessert').value);
}
else {
addDessert = 0;
}
var qtyDrinks = parseFloat(document.getElementById('qty').value * 1.50);
if (qtyDrinks<0) {
qtyDrinks=0;
document.getElementById('qty').value = 0;
alert("Drinks amount cannot be negative.");
}
var total = (radPizza + extraCheese + addShrooms + addAnchovies + addWings + addDessert + qtyDrinks);
document.getElementById('pizzaPrice').value = total.toFixed(2);
}
HTML Code : Code: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Pizza To Go</title>
<script type="text/javascript" src="PizzaCookies.js"></script>
<script type="text/javascript" src="cookieLib.js"></script>
<link rel="stylesheet" href="style1.css" type="text/css" title="style1"/>
<link rel="alternate stylesheet" type="text/css" href="style2.css" title="style2" />
<link rel="alternate stylesheet" type="text/css" href="style3.css" title="style3" />
<script type="text/javascript" src="Validation.js"></script>
</head>
<div class="styleLinks">
<a href="#" id="style1" onclick="setStyleSheets('style1'); return false;">Style 1</a>
<a href="#" id="style2" onclick="setStyleSheets('style2'); return false;">Style 2</a>
<a href="#" id="style3" onclick="setStyleSheets('style3'); return false;">Style 3</a>
</div>
<body id="body_main" onload = "setClock(), testCookies();" onunload = "stop()">
<script type="text/javascript" src="DigiClock.js"></script>
<h1>Pizza To Go</h1>
<form name="pizzaList" id="form1" onsubmit="return validateForm(this)" onreset="return resetForm()" action="#" method="get" >
<label for="dClock">Digital Clock:</label><input type="text" name="dClock" id="dClock" />
<fieldset id="customer"><legend>Customer Info</legend>
<label for="custname">Customer Name: </label><input type="text" name="custname" id="custname" value="" size = "50" maxlength = "48" /><br/>
<label for="phone">Phone: </label><input type="text" name="phone" id="phone" value="xxx-xxx-xxxx" size = "14" maxlength = "12" /><br/>
<label for="email">Email: </label><input type="text" name="email" id="email" value="" size = "70" maxlength = "68" /><br/>
<label for="address">Address: </label><input type="text" name="address" id="address" value="" size = "50" maxlength = "48" /><br/>
<label for="city">City: </label><input type="text" name="city" id="city" value="" size = "30" maxlength = "28" /><br/>
<label for="state">State: </label>
<select name="state" id="state" >
<option value="Select State">Select State</option>
<option value="AL">AL</option>
<option value="AK">AK</option>
<option value="AZ">AZ</option>
<option value="AR">AR</option>
<option value="CA">CA</option>
<option value="CO">CO</option>
<option value="CT">CT</option>
<option value="DE">DE</option>
<option value="DC">DC</option>
<option value="FL">FL</option>
<option value="GA">GA</option>
<option value="HI">HI</option>
<option value="ID">ID</option>
<option value="IL">IL</option>
<option value="IN">IN</option>
<option value="IA">IA</option>
<option value="KS">KS</option>
<option value="KY">KY</option>
<option value="LA">LA</option>
<option value="ME">ME</option>
<option value="MD">MD</option>
<option value="MA">MA</option>
<option value="MI">MI</option>
<option value="MN">MN</option>
<option value="MS">MS</option>
<option value="MO">MO</option>
<option value="MT">MT</option>
<option value="NE">NE</option>
<option value="NV">NV</option>
<option value="NH">NH</option>
<option value="NJ">NJ</option>
<option value="NM">NM</option>
<option value="NY">NY</option>
<option value="NC">NC</option>
<option value="ND">ND</option>
<option value="OH">OH</option>
<option value="OK">OK</option>
<option value="OR">OR</option>
<option value="PA">PA</option>
<option value="RI">RI</option>
<option value="SC">SC</option>
<option value="SD">SD</option>
<option value="TN">TN</option>
<option value="TX">TX</option>
<option value="UT">UT</option>
<option value="VT">VT</option>
<option value="VA">VA</option>
<option value="WA">WA</option>
<option value="WV">WV</option>
<option value="WI">WI</option>
<option value="WY">WY</option>
</select>
<br/>
<label for="zip">Zip: </label><input type="text" name="zip" id="zip" value="xxxxx or xxxxx-xxxx" size = "14" maxlength = "12" />
</fieldset>
<fieldset><legend>Pizza</legend>
<input type="radio" name="pizza" id="veggie" value="12.95" onclick="calcPizza()"/>Vegetarian ($12.95)<br />
<input type="radio" name="pizza" id="hawaiian" value="14.95" onclick="calcPizza()"/>Hawaiian ($14.95)<br />
<input type="radio" name="pizza" id="meatlovers" value="16.95" onclick="calcPizza()"/>Meat Lovers ($16.95)<br />
<input type="radio" name="pizza" id="works" value="18.95" onclick="calcPizza()"/>The Works ($18.95)<br />
<input type="radio" name="pizza" id="fourcheese" value="15.95" onclick="calcPizza()"/>Four Cheese ($15.95)
</fieldset>
<fieldset><legend>Extras</legend>
<input type="checkbox" name="cheese" id="cheese" value="2" onclick="calcPizza()"/>Extra cheese ($2.00)
<input type="checkbox" name="mushrooms" id="mushrooms" value="2.5" onclick="calcPizza()"/>Mushrooms ($2.50)
<input type="checkbox" name="anchovies" id="anchovies" value="3" onclick="calcPizza()"/>Anchovies ($3.00)
</fieldset>
<fieldset><legend>Sides</legend>
<input type="checkbox" name="wings" id="wings" value="2.75" onclick="calcPizza()"/>Wings ($2.75)
<input type="checkbox" name="dessert" id="dessert" value="6.95" onclick="calcPizza()"/>Dessert pizza ($6.95)
</fieldset>
<fieldset><legend>Drinks ($1.50)</legend>
<label for="qty">Quantity: </label><input type="text" name="qty" id="qty" size="5" value="0" onkeyup = "calcPizza()"/>
</fieldset>
<p><label for="pizzaPrice">Order total: $</label><input type="text" name="pizzaPrice" id="pizzaPrice" value="0" /></p>
<input type="submit" value="Place Order" /><input type="reset" value="Clear Form" />
</form>
</body>
</html>
I'm trying to figure out a way to put this in all js code with the onclick event handlers and the parameters. I have 3 links that switch the style of my page. Right now I have them working with inline event handlers. Here are my code snippets below. HTML: Code: <head>
<link rel="stylesheet" href="style1.css" type="text/css" title="style1"/>
<link rel="alternate stylesheet" type="text/css" href="style2.css" title="style2" />
<link rel="alternate stylesheet" type="text/css" href="style3.css" title="style3" />
</head>
<div class="styleLinks">
<a href="#" id="style1" onclick="setStyleSheets('style1'); return false;">Style 1</a>
<a href="#" id="style2" onclick="setStyleSheets('style2'); return false;">Style 2</a>
<a href="#" id="style3" onclick="setStyleSheets('style3'); return false;">Style 3</a>
</div>
JS: Code:
function setStyleSheets(title) {
//set styles and set cookie
var i;
var attribute;
var today = new Date();
var expDate = new Date(today.getTime() + 7*24*60*60*1000);
var styleSelected = "";
if (title=="style2"){
styleSelected = "style2";
}
else if (title=="style3"){
styleSelected = "style3";
}
for(i=0; (attribute = document.getElementsByTagName("link")[i]); i++) {
if(attribute.getAttribute("rel").indexOf("style") != -1 && attribute.getAttribute("title")) {
attribute.disabled = true;
if(attribute.getAttribute("title") == title) attribute.disabled = false;
SetCookie ('style', styleSelected, expDate, "/");
}
}
}
Well just came to notice this lack of tools on javascript to manage uploads or downloads while working on my new project. I've been trying different ways to get the upload progress, stimated time left, upload speed average, but everything I have done was somehow dirty. I have spent the last two days trying to get a flash file do this for me, and there is always an issue and you have to get a tricky solution to get something that should be a native javascript support at this age of the web. What do you think guys, isn't the web mature enought to get a decent upload / download progress functions? What are big guys doing, youtube, google, flickr? Hi all, I'm a javascript newbie and having some trouble with what I imagine it s a very basic issue! I am trying to declare a variable inside a function and use it later on in my code... but it just already returns white space... i.e. not variable value. I am setting it within this function: Code: function show_video1(){
document.getElementById('video1').style.display="block";
var video1Name = "Education World News (Part 1)";
document.getElementById('video2').style.display="none";
document.getElementById('video3').style.display="none";
document.getElementById('video4').style.display="none";
document.getElementById('video5').style.display="none";
document.getElementById('video6').style.display="none";
document.getElementById('video7').style.display="none";
document.getElementById('video8').style.display="none";
document.getElementById('video9').style.display="none";
document.getElementById('video10').style.display="none";
document.getElementById('video11').style.display="none";
}
and trying to call it later on with this: Code: <script type="text/javascript">document.write(video1Name)</script> It might be worth noting that each one of my 11 videos will hace a different name. Can anyone help out a newbie? Many thanks, greens85 Hi I need a bit of javascript help with an array please. just don't seem to have the correct syntax. (the "code" below is pseudo code, just to get the idea across) Here's what I currently have: var bill = new array[20]; var sam = new array[20]; var nancy = new array[20]; var Oscar = new array[20]; I'm assigning objects to them (ie Oscar[5] = new objLabel() This seems like a kluge, however. Here's what I'd like (again, pseudo-code) var Objects = {bill:null; sam:null; nancy:null; Oscar:null}; var theObject = new Array of Objects[20]; // yes: i know that's wrong... and that's the part I'm having trouble with so that I can do something like: with theObject[5] do { bill = new objLabel(); nancy = new objImage(); }; Just seems to me that keeping a single array of multiple objects is likely to be less error-prone than multiple arrays of single objects... But I don't have the syntax right... or can it be done in JS? If it's doable, would someone be kind enough to show me how to declare and access that example? Hi all, Rookie (extremely) programmer here, so be gentle Trying to build a little tool here.. Code: <html>
<body>
Artist ID: <input type=TEXT id=ArtistID name= ArtistID value="Artist ID">
<SELECT>
<OPTION value="http://URL.com/EditUser/"ArtistID.value".html">Edit User</OPTION>
<OPTION value="http://URL.com/EditArtist/"ArtistID.value".html">Edit Artist</OPTION>
<OPTION value="http://URL.com/Subscruptions/"ArtistID.value".html">Subscriptions</OPTION>
<OPTION value="http://URL.com/ControlRoom/"ArtistID.value".html">Control Room</OPTION>
</SELECT>
<input type="submit" value="Chyeah">
</body>
</html>
Yeah. Like I said. Rookie. I'm trying to save the input and pass it into the URLs that are the option values. So Artist ID being 111 would take you to url.com/<WHATEVER OPTION YOU CHOSE FROM DROP DOWN>/111 What am I doing wrong/What am I not doing? ps if this is in the wrong forum, sorry! Feel free to move it. Couldn't decide if this should go in DOM forum or not (probably bc I don't know what DOM is!) Actually I was trying to use this imagesearch code for one of my blog posts about cars, I want to embed the below codes one for BMW and one for Toyota in the blog post, individually if I place one of these codes they work fine but if I want to place them both together in 2 different blocks separately it doesn't work. Is there a way to achieve this, basically giving 2 different handlers. This will help me a lot - TIA. <script type="text/javascript" src="http://www.google.com/jsapi? key=ABQIAAAA1XbMiDxx_BTCY2_FkPh06RRaGTYH6UMl8mADNa0YKuWNNa8VNxQEerTAUcfkyrr 6OwBovxn7TDAH5Q"></ script><div id="TOYOTA">Loading...</div><script type="text/ javascript">google.load('search', '1');var imageSearch;function OnLoadSneha() { imageSearch = new google.search.ImageSearch(); imageSearch.setResultSetSize(google.search.Search.LARGE_RESULTSET); imageSearch.setRestriction (google.search.ImageSearch.RESTRICT_IMAGESIZE, google.search.ImageSearch.IMAGESIZE_MEDIUM); imageSearch.setSearchCompleteCallback(this, function(){ if (imageSearch.results && imageSearch.results.length > 0) {var contentDiv = document.getElementById('TOYOTA'); contentDiv.innerHTML = ''; var results = imageSearch.results; for (var i = 0; i < results.length; i++) { var result = results[i]; var imgContainer = document.createElement('div'); var title = document.createElement ('div'); var newImg = document.createElement('img'); newImg.src = result.tbUrl; var titleLink=document.createElement('a'); title.className=titleLink.className='gs-title'; titleLink.setAttribute ('href',result.url); titleLink.appendChild(document.createTextNode (result.titleNoFormatting)); title.appendChild(titleLink); imgContainer.appendChild(title); imgContainer.appendChild(newImg); contentDiv.appendChild(imgContainer); } function (imageSearch) { var cursor = imageSearch.cursor; var curPage = cursor.currentPageIndex; var pagesDiv = document.createElement('div'); for (var i = 0; i < cursor.pages.length; i++) { var page = cursor.pages[i]; if (curPage == i) { var label = document.createTextNode(' ' + page.label + ' '); pagesDiv.appendChild (label);} else {var link = document.createElement('a');link.href = 'javascript:imageSearch.gotoPage('+i+');';link.innerHTML = page.label; link.style.marginRight = '2px';pagesDiv.appendChild (link);}} var contentDiv = document.getElementById('TOYOTA'); contentDiv.appendChild(pagesDiv);} }}, null); imageSearch.execute ("TOYOTA");} google.setOnLoadCallback(OnLoadSneha);</script> <script type="text/javascript" src="http://www.google.com/jsapi? key=ABQIAAAA1XbMiDxx_BTCY2_FkPh06RRaGTYH6UMl8mADNa0YKuWNNa8VNxQEerTAUcfkyrr 6OwBovxn7TDAH5Q"></ script><div id="TOYOTA">Loading...</div><script type="text/ javascript">google.load('search', '1');var imageSearch;function OnLoadSneha() { imageSearch = new google.search.ImageSearch(); imageSearch.setResultSetSize(google.search.Search.LARGE_RESULTSET); imageSearch.setRestriction (google.search.ImageSearch.RESTRICT_IMAGESIZE, google.search.ImageSearch.IMAGESIZE_MEDIUM); imageSearch.setSearchCompleteCallback(this, function(){ if (imageSearch.results && imageSearch.results.length > 0) {var contentDiv = document.getElementById('TOYOTA'); contentDiv.innerHTML = ''; var results = imageSearch.results; for (var i = 0; i < results.length; i++) { var result = results[i]; var imgContainer = document.createElement('div'); var title = document.createElement ('div'); var newImg = document.createElement('img'); newImg.src = result.tbUrl; var titleLink=document.createElement('a'); title.className=titleLink.className='gs-title'; titleLink.setAttribute ('href',result.url); titleLink.appendChild(document.createTextNode (result.titleNoFormatting)); title.appendChild(titleLink); imgContainer.appendChild(title); imgContainer.appendChild(newImg); contentDiv.appendChild(imgContainer); } function (imageSearch) { var cursor = imageSearch.cursor; var curPage = cursor.currentPageIndex; var pagesDiv = document.createElement('div'); for (var i = 0; i < cursor.pages.length; i++) { var page = cursor.pages[i]; if (curPage == i) { var label = document.createTextNode(' ' + page.label + ' '); pagesDiv.appendChild (label);} else {var link = document.createElement('a');link.href = 'javascript:imageSearch.gotoPage('+i+');';link.innerHTML = page.label; link.style.marginRight = '2px';pagesDiv.appendChild (link);}} var contentDiv = document.getElementById('TOYOTA'); contentDiv.appendChild(pagesDiv);} }}, null); imageSearch.execute ("TOYOTA");} google.setOnLoadCallback(OnLoadSneha);</script> Hi All, I'd like to create a custom logo (don't know what yet) that represents the pieces of my project so that a user can click on a piece of the logo and have that associated panel brought forth. I'm not sure how to go about doing this so could someone point me in the right direction? Thanks! Hey guys, i'm taking on my first minor project in javascript and i've run into an error. For whatever reason, buttons i've defined are calling on functions that supposedly don't exist, yet they are clearly in the code and can be applied anywhere. I also checked the syntax errors in google chrome and they state: Uncaught SyntaxError: Unexpected token else Uncaught reference error: go() is not defined Uncaught reference error: highscore() is not defined. So without further delay, here is the full code. Can anyone help me out? Code: <html>
<head>
<script type="text/JavaScript">
<!--
var sam = 9;
var sally = 8;
var donald = 4;
function percentage (score) {
return score / 10 * 100;
};
function go() {
document.write("Sam's score on the test is " + percentage(sam) + "%, <br \> Sally's score on the test is " + percentage(sally) +
"%, <br \> Donald's score on the test is " + percentage(donald) + "%");
};
function highscore() {
if (Math.max(90, 80, 40) === 90){
document.write("Sam's score was the highest.")};
else if (Math.max(90, 80, 40) === 80){
document.write("Sally's score was the highest.")};
else{
document.write("Donald's score was the highest.")}
};
//-->
</script>
</head>
<body>
<input type="button" onclick="go()" value="Student Grades">
<br \>
<input type="button" onclick="highscore()" value="Highest Score">
</body>
</html>
Hi, I am doing a Validation for Form "Text input". If the user leaves the input empty, a function is starting to run. If the field is bigger than 1 - so it doesn't get into the function. The problem is: The first time, the user left the input empty, function ran, and I got the alert - that's OK. Second time, The user added 10 in the AGE input - And again he gets the Alert - But he should not. Note: Age input value, returns from a different function (calc) to a var called: result. this is the code: Code: $(document).ready(function(){
$('#btn_send').click(function(){
//var result gets the value from another function of input "Age" value. -> return thisform.Age.value
var result = calc(document.getElementById("campaignform"));
if (result<1)
{
$("#campaignform").submit(function(event) {
event.preventDefault(); alert ("prevent default");
});
}
else{
return true;
};
});
});
so if you try the second time to click on Submit, then you get into $('#btn_send').click(function() and eventhough you added for example 67 in the AGE (return as result) input, you get into the IF statement which is: if (result<1) I'm pretty new to developing, so I hop you will understand me. Sorry if I have mistakes. Can you advice what could be a better TITLE for this question? thanks in advance, Shai Hi forum, I am trying to attach an event to a dynamically produced button, and then use stopPropagation and preventDefault. Code: function chapter12_nodeOne() {
//create an element
var element = document.createElement('input');
//set some attributes
element.setAttribute('type', 'button');
element.setAttribute('value', 'submit');
element.setAttribute('id', 'myBtn');
//appendd the element into a DIV
document.getElementById('myDiv').appendChild(element);
//uses EventUtil to attach an event listener
EventUtil.addHandler(element, 'click', function() {
alert('event attached');
});
var flag = confirm('prevent default behavior of button?');
if (flag) {
var el = document.getElementById('myBtn');/////////////////////////(1)
var ev = el.onclick;
}
}
var EventUtil = {
addHandler: function(element, type, handler) {
//check if the element and the browser support DOM Level 2 event attachment
//if the user is not browsing with IE
if (element.addEventListener) {
element.addEventListener(type, handler, false);
}
//if user is browsing with IE
else if (element.attachEvent) {
element.attachEvent("on" + type, handler);
}
//if user is using a browser that only supports DOM Level 0 event attachment
else {
element["on" + type] = handler;
}
},
removeHandler: function(element, type, handler) {
//check if the element and the browser support DOM Level 2 event attachment
//if the user is not browsing with IE
if (element.removeEventListener) {
element.removeEventListener(type, handler, false);
}
//if user is browsing with IE
else if (element.detachEvent) {
element.detachEvent("on" + type, handler);
}
//if user is using a browser that only supports DOM Level 0 event attachment
else {
element["on" + type] = null;
}
}
};
But when debugging I see under el on the line marked with (1) that the onclick event is null. What am I doing wrong?! PS:the event is attached, when I click on the button I get an alert message is it possible to capture the control.event or element.event that was fired to invoke the onbeforeunload event. for example, if a button is clicked and it causes the onbeforeunload event to fire can i determine which button was clicked. thanks I have a ondrag event handler and in that I am trying to retrieve e.ClientX but it always return 0 in Mozilla. Works fine in IE though. How can retrieve the clientX and clientY in ondrag event? Hi I'm a newbie. Please help me. I'm using Joomla. I've got a dropdown which reads the filename from the database. When the user selects it I want an onchange event to open the pdf. I've been at it for 2 days now. Code: <?php
$con = mysql_connect('localhost', 'root', '');
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db("metnet", $con);
$sql="SELECT * FROM newsletter";
$result = mysql_query($sql);
echo "<form method='post'>";
$dropdown = "<select name='sname' onChange='location(this.form.sname)' >";
while($row = mysql_fetch_assoc($result)) {
$dropdown .= "\r\n<option value='{$row['fpath']}'>{$row['fpath']}</option>";
}
$dropdown .= "\r\n</select>";
echo $dropdown;
?>
Hello forum, My name is juan and recently started html programming. I have a web page with a drop box with the name of states. Code: <option value="">Alabama</option> <option value="">Alaska</option> I can add a onclick="code here" to the tag so that when the drop box alabama is selected it triggers the onclick event. Im using Ibox in order to have a image of the state open. Code: <a href="images/large/image_1b.jpg" rel="ibox" title="alabama at 1024x450!"><img src="images/small/image_1.jpg" alt=""/></a> the above is a <a> link tag correct? How do I go bout adding the above code into the onclick event? |
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