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JavaScript - Having Trouble Moving Image
Hello,
I am trying to move an image down 20px each time the button is clicked, but I can only get it to move down once. I see what I am doing wrong, but I'm not sure how to fix it. I don't know how to store the updated position of the image in a variable. Code: <center>
<input type="button" value="Click" onClick="moveDown()"/>
</center>
<img id="Ball" src="ball.jpg" style="position:absolute; top:100; left:100;"/>
<script language="JavaScript">
var Image = document.getElementById("Ball");
var Position = 100;
function moveDown()
{
Image.style.top = Position + 20
}
</script>
Thanks, Celia Similar TutorialsHi, I'm noob , but i have nice idea i want to do it but i can't .. i tried many ways to do it .. but didn't work any of them .. the idea is move the foot to room no.1 .. but i want to see the foot moving on the red line to the room like this pic : Hi there folks. I am a bit stuck with a little code. I am making a online yearbook entry and I wanted an image of myself animate/move from the top left hand to the bottom right of the screen. I also wanted to allow people reading it the option to change bg colour and text size - but I have managed to do those. The difficulty I am having is with moving the image, could anybody suggest any simple codes because I am new to this and don't want my head spinning before I go any further! Any help is greatly appreciated. Hello, I'm newbie in javascript, but i want to make an moving image. In time it should change to other image with other button. Also it could be changed by user. The change should be dynamic like moving from left to right. ^^ Any advices, tutorial links or smthing.. Thx My code is: Code: <html>
<head>
<script type='text/javascript'>
winx=220
winy=176
self.resizeTo(winx,winy);
</script>
<img id="default"
style="z-index: 0;left: 0; position: absolute; top: 0px"
height=32 width=32 align=baseline border=0 hspace=0 src='save.gif'></p>
<script type="text/javascript">
document.getElementById("default".style.top = '0px';
document.getElementById("default".style.left = '0px';
</script>
The image shows up, but it doesn't move. I can't seem to find out what I'm doing wrong. Edit: Finally spotted it, I was missing a ")" ._. Hey guys, I was trying to make a Javascript game that moves an image across the screen randomly. Instead of executing properly, it just shows the image's starting point, and stops. No movement. Is there anyway I could fix this? Thanks, Fizz. Code: <html>
<head>
<title>Image Mover</title>
<style>
DIV.movable { position:absolute; }
</style>
</head>
<script language="javascript">
function Start() {
var x = 5; //Starting Location - left
var y = 5; //Starting Location - top
var dest_x = Math.floor(Math.random()*650); //Ending Location - left
var dest_y = 500; //Ending Location - top
var interval = 10; //Move 10px every initialization
moveImage();
}
function NewDest() {
var x = 5; //Starting Location - left
var y = 5; //Starting Location - top
var dest_x = Math.floor(Math.random()*650); //Ending Location - left
var dest_y = 500; //Ending Location - top
var interval = 10; //Move 10px every initialization
moveImage();
}
function moveImage() {
//Keep on moving the image till the target is achieved
if(x < dest_x) x = x + interval;
if(y < dest_y) y = y + interval;
//Move the image to the new location
document.getElementById("ufo").style.top = y+'px';
document.getElementById("ufo").style.left = x+'px';
if ((x+interval < dest_x) && (y+interval < dest_y)) {
//Keep on calling this function every 100 microsecond
// till the target location is reached
window.setTimeout('moveImage()',30);
if (x == dest_x) && (y == dest_y) {
NewDest();
}
}
}
</script>
<body onload="Start()">
<div id="ufo" class="movable">
<img src="Mouse.jpg" alt="mouse" WIDTH = 30/>
</div>
</body>
</html>
Hello all! I am fairly experienced in HTML but javascript I am useless with. My website can be found here; http://mgwalker.site90.com/index.html If you would be as kind as to load it in Chrome and in firefox, in firefox the changing image pops up on the top right of the screen. In Chrome it is centered in the div, as it should be... Please help I have no idea why this would happen! I've put together a couple of scripts, in order that I can make an image move left or right on the x-axis, depending on the LR (left/right) read-out from the accelerometer of an iPhone. However, it's not working at the moment, so could anyone possibly see what I've missed out - I've worked on it that long, that I think I'm missing something obvious!! THANKS!! Code: <!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>onlywebpro.com</title>
</head>
<body>
<h2>Device Orientation with HTML5 | onlywebpro.com</h2>
<img src="Car4.png" id="car" style="position:relative;top:200px;left:200px; "><br>
<script type="text/javascript">
if (window.DeviceOrientationEvent) {
console.log("DeviceOrientation is supported");
window.addEventListener('deviceorientation', function(eventData) {
var LR = eventData.gamma;
deviceOrientationHandler(LR);
var userWidth = window.screen.width;
function moveRight() {
var pp = document.getElementById("car");
var lft = parseInt(pp.style.left);
var tim = setTimeout("moveRight()",50); // 50 controls the speed
lft = lft+LR; // move by 50 pixels
pp.style.left = lft+"px";
if (lft > userWidth + 439) { // left edge of image past the right edge of screen
pp.style.left = -400; // back to the left
clearTimeout(tim);
}
}
}, false);
} else {
alert("Not supported on your device or browser. Sorry.");
}
var userWidth = window.screen.width;
function moveRight() {
var pp = document.getElementById("car");
var lft = parseInt(pp.style.left);
var tim = setTimeout("moveRight()",50); // 50 controls the speed
lft = lft+LR; // move by 50 pixels
pp.style.left = lft+"px";
if (lft > userWidth + 439) { // left edge of image past the right edge of screen
pp.style.left = -878; // back to the left
clearTimeout(tim);
}
}
</script>
</body>
</html>
hi all, I want to be able to move an image from a left or right when tilting my ipad. when tilted the the right the image moves to the right according to the angel tilted and do the same to the other direction. the image is doubled (or more) the size of the stage (1024x768). I can't use Flash for obvious reasons so looking at other options. thanks Hello everyone. I want to move my image through table cells by using arrow buttons. Code: <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Move</title>
<style type="text/css" >
table
{
background-color:#FFCC00;
margin-top: 100px;
margin-bottom: 100px;
}
</style>
</head>
<body onload="setup()">
<script type="text/JavaScript" onkeydown="handleKey(event)">
document.write('<table border="1" cellspacing="0" cellpadding="10">');
var count =0
for (var row=0; row<20; row++) {
document.write('<tr>');
for (var col=0; col<20; col++) {
idnmr = count
count++
document.write('<td style="border:0"; id="idnmr";>');
document.write('</td>');
}
document.write('</tr>');
}
function setup() {
row=0;
col=0;
insertKnight(row,col);
}
function handleKey(e) {
if (typeof e !='object') e=window.event;
if (e.type == 'keydown' && (e.keyCode ==27 || (e.keyCode >= 37 && e.keyCode <=40))) {
switch (e.keycode) {
case 37:
dC= -1;
dR = 0;
break;
case 38:
dC= +1;
dR=0;
break;
case 39:
dC = 0;
dR = +1;
break;
case 40:
dC= 0;
dR=-1;
break;
}
emptyCell(row,col);
function emptyCell(row,col)
{
var id = 'r' + row + 'c' + col;
var cell= document.getElementById(id);
if(cell) cell,innerHTML='';
}
row +=dR;
col +=dC;
//insert image
insertKnight(row,col);
return false;
function insertKnight(row,col) {
var id = 'r' + row + 'c' + col;
var cell = document.getElementById(id);
var colour = cell.className;
if (colour != 'white') {
var knight='cherry.png';
}
else {
var knight= 'cherry.png';
function eraseImage(row,col) {
var id = 'r' + row + 'c' + col;
document.getElementById(id).innerHTML = '';
}
cell.innerHTML = '<img src=" ' + knight + ' " alt="' + colour + 'knight" />';
}
document.getElementById('debug').innerHTML = 'r='+row+' c='+col;
function drawImage(row,col) {
var id = 'r' + row + 'c' + col;
document.getElementById(id).innerHTML = '<img src="cherry.png"/>';
}
</script>
</body>
</html>
This is my code. Now i have problems with the eraseImage and drawImage functions. They just don't work. Any help will be appreciated. Thank you Code: function move_user_img(str) {
var step = 25;
// change this to different step value
switch(str) {
case "down":
var x = document.getElementById('imageUser').offsetTop;
x = x + step;
document.getElementById('imageUser').style.top = x + "px";
break;
case "up":
var x = document.getElementById('imageUser').offsetTop;
x = x - step;
document.getElementById('imageUser').style.top = x + "px";
break;
case "left":
var y = document.getElementById('imageUser').offsetLeft;
y = y - step;
document.getElementById('imageUser').style.left = y + "px";
break;
case "right":
var y = document.getElementById('imageUser').offsetLeft;
y = y + step;
document.getElementById('imageUser').style.left = y + "px";
break;
}
}
function move_report_img(str) {
var step = 25;
// change this to different step value
switch(str) {
case "down":
var x = document.getElementById('imageReport').offsetTop;
x = x + step;
document.getElementById('imageReport').style.top = x + "px";
break;
case "up":
var x = document.getElementById('imageReport').offsetTop;
x = x - step;
document.getElementById('imageReport').style.top = x + "px";
break;
case "left":
var y = document.getElementById('imageReport').offsetLeft;
y = y - step;
document.getElementById('imageReport').style.left = y + "px";
break;
case "right":
var y = document.getElementById('imageReport').offsetLeft;
y = y + step;
document.getElementById('imageReport').style.left = y + "px";
break;
}
}
Code: <div id ="display" style="width:640px; height:480px; overflow:hidden;">
<div>
<img src ="
<?php
echo UPLOADPATH . $userImage;
?>
" style = "position:absolute;" id="imageUser"/>
</div>
<div id ="imageReport">
<img src = "
<?php
echo $reportImage;
?>
" style = "opacity:0.25;height:700px; width:450px;" />
</div>
</div>
<div style="position:absolute; top:550px; left:100px;">
<p>Control User Image</p>
<input type=button onClick=move_user_img('up') value='Up'>
<input type=button onClick=move_user_img('left') value='Left'>
<input type=button onClick=move_user_img('right') value='right'>
<input type=button onClick=move_user_img('down') value='down'>
</div>
<div style="position:absolute; top:650px; left:100px;">
<p>Control Report Image</p>
<input type=button onClick=move_report_img('up') value='Up'>
<input type=button onClick=move_report_img('left') value='Left'>
<input type=button onClick=move_report_img('right') value='right'>
<input type=button onClick=move_report_img('down') value='down'>
</div>
hi there, i am a novice at this and have copied and pasted code to try and acheive what i need but am having trouble. I have two functions, one to show random ads but the second is to show the "ads" in a larger image in a different place when mouseover. Although this code works i now want to adapt it to show a slightly different picture. Here is the code i am using and a presume the problem lies with the showIt(this.src) as i dont want it to show the same picture. Any help would be great. Thank you here is the script i am using <head> <script type="text/javascript" src="??????????.js"></script> <script type="text/javascript"> function showIt(imgsrc) { var holder = document.getElementById('imageshow'); var newpic= new Image(); newpic.src=imgsrc; holder.src=imgsrc; holder.width =300; holder.height=300; } </script> </head> and here is the main body code <a href="http://www.???????.com/" rel="nofollow" target="_blank"><img src="???????.jpg" width="100" height="100" border="1" onmouseover="showIt(this.src)"></a>' I am currently working in Microsoft Frontpage designing a website for a friend. I was trying to make a JS alert come up when I mouse over an image and I have had no luck at all. This is the bit of code where The alert needs to be. I am a bit new to Javascript so I apologize if this was a stupid question. Code: <img border="0" src="../gallery%20pictures/Home.png" width="468" height="60"><br> <br> <p align="center"> <img <FORM src="../gallery%20pictures/THE%20BUTTON.png" width="388" height="372"> <br> </p> <p> </p> </body> </html> In the spirit of the season, I wanted to make it snow on my website. So I began digging. Eventually I ended up with a script that moved an image element down the page in a snowflake-like manner. The problem with it was it was dependant on an img element for every flake - simply no poor programming when using an Object Oriented programming language. So I decided I wanted to extend (in Java-speak; most of my programming background is in Java) the in-built Image object. The new object's src variable will lead to an image of the type of flake it is. (I want to be able to have more variance in images than a simple dot.) The new object will have a function that will allow it to move. A separate, unrelated function will control when each flakes move. I did some more research and read about prototyping on JavaScript Kit and here, but I still cant seem to get this to work. JS Lint says it's bug-free, but Firefox says "move()" is an invalid function. I am presuming the problem lies in my inability to fully grasp how to extend objects in JavaScript. Code: <html>
<head>
<script type="text/javascript">
Image.prototype.dFlake=dotFlake;
function dotFlake(xLocation,yLocation){
this.src = "simpleDotFlake.png";
this.x = xLocation;
this.y = yLocation;
}
dotFlake.prototype.move = fall;
function fall(){ // ^^ Belongs to dotFlake class.
this.style.position="absolute";
this.style.top = this.y;
this.style.left = this.x;
this.y= this.y + 1; // Falling is constant.
if (Math.random() > 0.5){ // Random direction, though.
this.x = this.x + 1;
} else{
this.x = this.x - 1;
}
}
function snow(flakes){ // Allows addition of different flakes later.
for (i in flakes){
i.move();
}
timer = setTimeout("snow()",1);
}
function startSnow(){
basicFlakes = new Array(new dotFlake(0,0));
snow(basicFlakes);
}
</script>
</head>
<body onload="startSnow()">
<h1>This is test text.</h1>
<img id="basicFlake" src="./simpleDotFlake.png" width="10" height="10" />
</body>
</html>
Any and all input is much appreciated. Thank you! What is wrong with my code? I am trying to move a div and it wont work at all. Also my little <a> fix is really sloppy. Could I have some help with how I should fix that too? Thanks! Code: <html>
<head>
<script type="text/javascript">
var obj = document.getElementById("object");
var x = parseInt(obj.style.left);
var y = parseInt(obj.style.top);
function right(){
obj.style.left = "" + (x + 1) + "";
}
function left(){
}
</script>
</head>
<body>
<a href="" onclick="right();">
<div id="container" style="position:absolute; top:100px; left:50%; margin-left:-400px; width:800px; height:600px; border:3px solid #808080;">
<div id="object" style="position:relative; top:559; left:379; background-color:#CCCCCC; width:40px; height:40px; border:1px solid #696969;">
</div>
</div>
</a>
</body>
</html>
I already looked at this http://codingforums.com/showthread.p...ht=moving+text thread and I know it's similar. I just don't know what I am doing wrong. My css puts the text where it needs to go, then the script is supposed to alter it's pixel position and so it should move, right? Code: <html>
<head>
<style>
item1 {position: absolute; left:20px; top:280px;}
item2 {position: absolute; right:20px; top:280px;}
</style>
</head>
<body>
<item1 id="item1" >item1</item1>
<item2 id="item2" >item2</item2>
<script type="text/javascript">
var i=0; var j=0;
var obj1=document.getElementById(item1);
var obj2=document.getElementById(item2);
obj1.style.visibility="visible";
obj2.style.visibility="visible";
//if (typeof obj1.style.left!="undefined" && obj2.style.right!="undefined")
//{
//loop from ParseInt to coordinates in center of screen
for (i=0;i<100;i++)
{
obj1.style.left=parseInt(obj.style.left) + i + "px";
document.write("<item1 id="item1">item1</item1>");
document.close();
}
//for (j=0;j<100;j++)
// {
// obj2.style.right=parseInt(obj2.style.right) + j + "px";
// document.write("<item2 id="item2" >item2</item2>");
// }
alert(i);
//}
</script>
</body>
</html>
Am I anywhere close? I am trying this on IE6 (I only have Windows 2000) and on Firefox 3.5.3. I'm trying to create something like: http://www.deliciouslysortedibiza.com/ But I want the links to move like it does in there. Does anyone know the easiest way I could achieve this? Since I'm fairly new to Javascript and all. Thanks ! Hello everyone. I am trying to make a flag with css and then move it with javascript. Code: <html>
<head>
<title>Flag</title>
<link rel="stylesheet" type="text/css" href="flag3.css" />
<script language="javascript">
Hmove=-100;
function moveObjRight(obj)
{
obj.style.left=Hmove;
Hmove+=4;
if(Hmove<900)
window.setTimeout("moveObjRight(" +obj.id+ ");", 0);
}
</script>
</head>
<body>
<h1>The flag of ___ by www</h1>
<div id="bar3">
<div id="bar2">
<div id="bar1">
</div>
<br />
<br />
<br />
<br />
</div>
<br />
<br />
<br />
<br />
</div>
<script language="JavaScript">
moveObjRight(bar3);
</script>
</body>
</html>
This is my code. The image is moving to the right, but i want it bounce from side-to-side in the browser window. Any help will be appreciated. Thank you. I have a blog with a two-column setup... a sidebar and a main section for posting articles, but encapsulated in a div wrap. I am creating a mobile site and want to: 1) remove/hide the sidebar 2) move the main section to the center for easy reading My issue is that I have tried CSS without success in accomplishing BOTH tasks. I easily can hide the sidebar using various methods, but the main section will not move to the center of the wrap, presumably because the sidebar is still there but not visible. So I went the JavaScript route instead with the following: Code: <script type="text/javascript">
<!--
if (screen.width <= 699) {
var wrap = document.getElementById('wrap');
var sidebar = document.getElementById('sidebar');
wrap.removeChild(sidebar);
wrap.style.background = "inherit";
}
-->
</script>
Now my questions is... since the element is now removed, how do I move the main section to the center? I tried grabbing the main section with its id and floating it left (just to play around and see if it would move) and that didn't do anything. Any help would be appreciated. Hi Guys, seen some pages who give alerts or Warnings mentioning that i'm moving away from my webpage. Best example is hotmail when you are on the compose mail screen and when click another link it is asking for confirmation. Can you one please shed some light on how to do this. Your help is greatly appreciated. Cheers Dileep |
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