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JavaScript - Timeout Loop Issues
Code:
function ChangeElementSize(objName,ToWidth,ToHeight,Speed)
{
objId=document.getElementById(objName);
CurWidth=parseInt(objId.style.width);
CurHeight=parseInt(objId.style.height);
if(CurWidth!=ToWidth) {objId.style.width=GetValueChange(CurWidth,ToWidth)+"px";}
if(CurHeight!=ToHeight) {objId.style.height=GetValueChange(CurHeight,ToHeight)+"px";}
if(CurWidth!=ToWidth || CurHeight!=ToHeight)
{
TimeoutCmd="ChangeElementSize(\""+objName+"\","+ToWidth+","+ToHeight+","+Speed+");";
setTimeout(TimeoutCmd,Speed);
}
}
function GetValueChange(CurrentValue,ToValue)
{
ValueDiff=ToValue-CurrentValue;
if(Math.abs(ValueDiff)!=1)
{CurrentValue=CurrentValue+Math.round(ValueDiff/2);}
else
{CurrentValue=CurrentValue+ValueDiff;}
return CurrentValue;
}
<div id="ChangeSizeDiv" style="position:absolute;left:0px;top:0px;width:200px;height:40px;border:5px solid green;overflow:hidden" onmouseover='ChangeElementSize("ChangeSizeDiv",500,500,40);' onclick='ChangeElementSize("ChangeSizeDiv",200,40,40);'>
Hover to resize me ...
</div>
This is working, but with a snag ... If you run it, and hover over the div, the box grows. If you click it, it shrinks. Good, but if you hover and click fast enough it puts the box in a timeout(x2) loop. One timeout is shrinking the box, while the other is making it larger, thus competing, and neither can do its job. How can I fix this? If possible, I'd like to be able to terminate any current timeout processes, then start the new one, but I haven't figured out how to pass the timeout ID back so that it can be cancelled. Similar TutorialsHello, Im still new to JS/Ajax/PHP and Im creating a filter(html checkbox form) that will call a single query that will filter unwanted items.. This query contains a INNER JOIN, AND and ON conditions. I have also created a simple javascript loop to scan the form for checked values.. but im having trouble connecting the dots.. Im not certain how to make each checked value trigger individual parts of the query.. Heres what I have: Loop: Code: function sendInfo(form) {
var filterList = "";
for( var i =0; i < form.elements.length; i++ ) {
if( form.elements[i].type = 'checkbox' ) {
if( form.elements[i].checked == true ) {
filterList += form.elements[i].value + ',';
}
}
}
alert("The filter list is " + filterList);
}
HTML FORM: Code: <form name="filterForm" id="filterForm"> <input type="checkbox" name="red" value="red" id="red"> RED <input type="checkbox" name="blue" value="blue" id="blue"> BLUE <input type="checkbox" name="green" value="green" id="green"> GREEN <input type="submit" name="submit" value="click" onClick="sendInfo(document.filterForm)"> </form> PHP/Mysql QUERYused to filter results) Code: $submitFilter= isset($_POST['submit']);
if($submitFilter)
{
//checks for submitted form
//connect to database
//select database
$filterQuery= mysql_query("SELECT *
FROM table_1
INNER JOIN table_2 ON table_1.color_Id=table_2.color_Id
WHERE
table_2.color_Category <> 'red'
AND table_2.color_Type <> 'red'
AND table_2.color_Category <> 'blue'
AND table_2.color_Type <> 'blue'
AND table_2.color_Category <> 'green'
AND table_2.color_Type <> 'green'
As you can see I have joined two tables and want to exclude any from table_1 where the color is red.. how can I request this action from the loop once a check box has been checked??? like I said im new so if this looks wrong/confusing feel free to be brutal !! I have searched the forums and Iv been close to finding an example/post but nothing solid.. I think I mayb using the wrong terminology/descriptions in my searches to find the correct results bcuz I feel like im circling the block to no end.. PLEASE HELP or POINT ME IN THE RIGHT DIRECTION!!!!! THANKS IN ADVANCE! is there a way to make it so when the user clicked the start game button that the button would appear for a few seconds then disappear and when the start game button was clicked again another one would appear again? There will be buttons inside of the divs i just havnt programed them in yet 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=utf-8" />
<title>Random Sounds 2</title>
<style type="text/css">
.article_example_div { display:none; width:300px; height:300px;}
</style>
<script type="text/javascript" language="JavaScript"><!--
NumberOfDivsToRandomDisplay = 5;
var r = Math.ceil(Math.random() * NumberOfDivsToRandomDisplay);
//code to prevent same div from showing twice in a row.
var CookieName = 'DivRamdomValueCookie';
function DisplayRandomDiv() {
if(NumberOfDivsToRandomDisplay > 1) {
var ck = 0;
var cookiebegin = document.cookie.indexOf(CookieName + "=");
if(cookiebegin > -1) {
cookiebegin += 1 + CookieName.length;
cookieend = document.cookie.indexOf(";",cookiebegin);
if(cookieend < cookiebegin) { cookieend = document.cookie.length; }
ck = parseInt(document.cookie.substring(cookiebegin,cookieend));
}
while(r == ck) { r = Math.ceil(Math.random() * NumberOfDivsToRandomDisplay); }
document.cookie = CookieName + "=" + r;
}
//end of code to prevent same div from showing twice in a row.
for( var i=1; i<=NumberOfDivsToRandomDisplay; i++) {
document.getElementById("randomdiv"+i).style.display="none";
}
document.getElementById("randomdiv"+r).style.display="block";
}
</script>
</head>
<body>
<input type="button" value="Start game" onclick="DisplayRandomDiv()"></button>
<div id="randomdiv1" class="article_example_div">
Div 1
</div>
<div id="randomdiv2" class="article_example_div">
Div 2
</div>
<div id="randomdiv3" class="article_example_div">
Div 3
</div>
<div id="randomdiv4" class="article_example_div">
Div 4
</div>
<div id="randomdiv5" class="article_example_div">
Div 5
</div>
</body>
</html>
I found a simple script from the net that redirects the user to another page after timeout. I want to redirect the user to an anchor (an anchor called #done) in the SAME page, but i couldn't do it. Here's the code. Any help will be appreciated. Thank you. Code: <form name="redirect">
<center>
<font face="Arial"><b>You will be redirected to the script in<br><br>
<form>
<input type="text" size="3" name="redirect2">
</form>
seconds</b></font>
</center>
<script>
<!--
/*
*/
//change below target URL to your own
var targetURL="http://myurl.com"
// tried #done/samepage.htm as also samepage.htm/#done
//change the second to start counting down from
var countdownfrom=6
var currentsecond=document.redirect.redirect2.value=countdownfrom+1
function countredirect(){
if (currentsecond!=1){
currentsecond-=1
document.redirect.redirect2.value=currentsecond
}
else{
window.location=targetURL
return
}
setTimeout("countredirect()",1000)
}
countredirect()
//-->
</script>
Hi all, I have some card/images and would like to have the first one displayed.Which i can do. Then when I mouse click on the card/image it goes to another image for say 2 secs, then with out clicking goes back to the orignal card. I have played with the syntax for ages and also looked on the net and cannot get it right. This is what I have so far. Code: <html> <head> <script> var back = new Image(); back.src = "back.gif";// preloads the image. var ace = new Image(); ace.src = "0.gif"; //Preload the Image var two = new Image(); two.src = "1.gif";// preloads the image. var three = new Image(); three.src = "2.gif";// preloads the image. var four = new Image(); four.src = "3.gif";// preloads the image. var five = new Image(); five.src = "4.gif";// preloads the image. </script> </head> <body> <img name="img0"> <img name="img1"> // what is this for? <script> document.images['img0'].src = back.src;//displays image /*How do I have one card diplayed then mouseclick on that one card and another card will display for 2 secs then the card will go back to original card. */ </script> </body> </html> Any ideas ? Thanks heaps Shayne Hi, I've created a function that calls to get data from my MySQL database. If there is no data in my MySQL database, I want the page to just keep refreshing and then if it finds the data, I want it to echo it to the page. I'll post my code below and it'll give you an idea of what's going on. <script src="jquery.js" type="text/javascript"></script> <script type="text/javascript"> $.ajax({ url: 'retrieve.php', data: "", dataType: 'json', success: function(data) { var videoid = data[0]; if (videoid == false) { setTimeout("location.reload(true);",1000); } else { $('#youtube').html("<iframe width='400' height='225' src='http://www.youtube.com/embed/"+videoid+"?rel=0&autohide=1&showinfo=0' frameborder='0' allowfullscreen></iframe>"); } } }); </script> </head> <body onload="$.ajax();"> <div class="container"> <div id="youtube"> <!----- checkServer() output appears here !-----> </div> </div> </body> So as you can see the idea is that if there is a video id present in the database, it echoes the embed code for the YouTube video. If the database is empty, it just keeps refreshing the page. However this not what's happening. At the moment it just keeps echoing an empty YouTube video onto the page. I think it has something to do with my if and else syntax? Thanks for any help you can give. Also I apologize in advance if this a retarded way of doing things. I just need a basic proof concept before I make this code work any better. I asked a question a while ago about this box that changes content but i didn't say i wanted it to start automatically. Code: <script type="text/javascript">
// The stuff the box will say
var content = [
"<a href='www.url.com'> link 1 </a>",
"<a href='www.url2.com'> link 2 </a>",
"insert html content"
];
var msgPtr = 0;
var stopAction = null;
function change() {
var newMsg = content[msgPtr];
document.getElementById('change').innerHTML = ''+msgPtr+'<p>'+newMsg;
msgPtr++; msgPtr = (msgPtr % content.length);
}
function startFunction() { change(); stopAction = setInterval(change, 5000); }
function stopFunction() { clearInterval(stopAction); }
</script>
</head>
<body>
<button onclick="startFunction()">Start</button>
<button
onclick="stopFunction()">Stop</button>
<div id="change"
style="border: 5px solid rgb(136, 136, 136); width: 200px; height: 100px; background-color: rgb(221, 221, 221); color: white;"></div>
</body>
Could someone make this so that it starts automatically when the page loads? Like with a time out? I have this code that when you click a button it will shuffle items in an array then you have 10 seconds to read it then the array items disappear. But I need to figure out how to make it so that you can do something like click another button that will allow you to click the twister drill button again and it will shuffle it heres the code any help would be appreciated Code: <script type="text/javascript">
function myFunction()
{
var myarray=["red","blue", "yellow", "orange"]
myarray.sort(function() {return 0.5 - Math.random()})
var x=document.getElementById("demo");
x.innerHTML=myarray;
}
</script>
<script type="text/javascript">
{
var t=setTimeout("alertMsg()",10000);
}
function alertMsg()
{
document.getElementById("demo").style.display="none";
}
</script>
<button onclick="myFunction()">Twister Drill</button>
<font size="5">
<p id="demo"></p>
</font>
If you go to: http://ocmd.freehostia.com/tbb/ You'll see that when the user presses enter, it goes to another page. Currently, in the scripts part of my page is this: Code: function checkKey()
{
if (window.event.keyCode == 13)
{
var audioElement = document.createElement('audio');
audioElement.setAttribute('src', 'horse.ogg');
audioElement.play();
window.location = "google.html";
return false;
}
}
Notice how I'm trying to play an audio file? Well, I need for the window.location to go after the audio file plays, or alternatively for it to be played after xx milliseconds. Thank-you. I am a Javascript novice so please bear with me here. I made a multi level menu at http://x7.ro/proiect/produse.html -first left menu item:Raticide- by using Javascript and css. What this should do is show the sub-menu on mouseover and hide it on mouseout WITH a custom delay so people have a chance to click menu items. This seems to work except for the all needed delay. I was trying to use javascript setTimeout function but I cannot seem to make it work. Think this should be easy for a pro and Id remain indebted if any of you could help. Thanks a lot. Below is the working code:JS and Html. Code: <SCRIPT type=text/javascript>
function showElement(layer){
var myLayer = document.getElementById(layer);
if(myLayer.style.display=="none"){
myLayer.style.display="block";
myLayer.backgroundPosition="top";
} else {
myLayer.style.display="none";
}
}
function hideElement(layer){
var myLayer = document.getElementById(layer);
if(myLayer.style.display=="block"){
myLayer.style.display="none";
myLayer.backgroundPosition="top";
} else {
myLayer.style.display="block";
}
}
</SCRIPT>
Code: <A class=button onMouseOver="javascript:showElement('v-menu');return false;" onMouseOut="javascript:hideElement('v-menu');return false;" href="#"><SPAN>Raticide</SPAN></A>
<UL style="DISPLAY: none" id=v-menu class=v-menu>
<LI><A href="aaa.html">PRODIORAT</A></LI>
<LI><A href="aaa.html"> PROBRODIRAT</A></LI></UL>
I would like to know (maybe I know the answer already), but can a function be paused, like halfway the function pause the function for lets say for 5 seconds, then continue. Thanks I use the Mouse Gesture Redox addon for Firefox 3.4 which allows javascript to be added for a gesture. I have found code which will perform different commands for the same gesture when a particular key is pressed. I would like the code to be disabled after each key press or a timeout (if a key is not pressed) until the same gesture is performed again. My attempts at coding to produce this effect have not worked. Can this be achieved? porman9 Code: document.onkeypress=detectKey;
function detectKey(e)
{
if(e.which==97){BrowserOpenAddonsMgr();}
else
if(e.which==100){gBrowser.loadOneTab(currURL, null, null, null, false, false);document.body.focus();}
else
if(e.which==110){mgB_OpenTab();}
else
if(e.which==109){mgW_MinWin();}
else
if(e.which==114){mgW_Restart();}
else
if(e.which==117){mgB_UndoCloseTab();}
}
Hi People, I've used the Concertina Menu from Stu Nicholls on one of my websites and am trying to get the Menu slider to slide up automatically after a certain time. Currently it only slides up on a mouseclick. The working link can be found at www.atomwhale.com/share/clients/branch/website/home.html Hope someone can help me in getting this to work. thanks, Jeriel. Forgive me if this has been answered elsewhere. can anyone tell me if they are aware of the script which will allow an image button to appear, after a certain time. I'm running a sales video and I do not want the download button to appear until the end. Hope this makes sense?? I want to be able to display the whole contents of a text file containing 4 paragraphs of text, on a static web page, as soon as a video finishes playing on the page. The video is to be set to autorun as soon as the page loads in the browser. The text file mentioned above, is to remain hidden when the page initially loads and the video is playing. Please I need your advice about what JavaScript code to use to achieve this effect, and where to place the code in the HTML code of the web page. I am new to website design and the use of JavaScript code. I have seen examples of code used for the timed delay of the display of an image file, after a video has finished playing. I do not know how to apply this to the display of a text file. I do not want to convert the whole text file into an image file, as I feel this would negatively affect the search engine optimisation of the page, if there is no text content on the page. Thank you. I am trying to work out how to use Google Chrome DevTools to simulate a timeout on a JavaScript file on my site. I can use the 'Toggle Device Mode' to introduce throttling but that doesn't target a specific script. Is there a way to do this with DevTools? I am using Chrome 38. Ok, I'm nearly pulling my hair out with this one. I have been looking at this code for two evenings now, and rewrote it 4 times already. It started out as jQuery code and now it's just concatenating strings together. What I'm trying to do: Build a menu/outline using unordered lists from a multidimensional array. What is happening: Inside the buildMenuHTML function, if I call buildMenuHTML, the for loop only happens once (i.e. only for 'i' having a value of '0'.) If I comment out the call to itself, it goes through the for loop all 3 times, but obviously the submenus are not created. Here is the test object: Code: test = [
{
"name" : "Menu 1",
"url" : "menu1.html",
"submenu" : [
{
"name" : "menu 1 subitem 1",
"url" : "menu1subitem1.html"
},
{
"name" : "menu 1 subitem 2",
"url" : "menu1subitem2.html"
} ]
},
{
"name" : "Menu 2",
"url" : "menu2.html",
"submenu" : [
{
"name" : "menu 2subitem 1",
"url" : "menu2subitem1.html"
},
{
"name" : "menu 2subitem 1",
"url" : "menu2subitem1.html"
} ]
},
{
"name" : "Menu 3",
"url" : "menu3.html",
"submenu" : [
{
"name" : "menu 3 subitem 1",
"url" : "menu3subitem1.html"
},
{
"name" : "menu 3 subitem 1",
"url" : "menu3subitem1.html"
} ]
}
];
Here is the recursive function: Code: function buildMenuHTML(menuData,level) {
var ul;
if (level == 1) {
ul = "<ul id='menu'>";
} else {
ul = "<ul class='level" + level + "'>";
}
for (i = 0; i < menuData.length; i++) {
menuItemData = menuData[i];
ul += "<li>";
ul += "<a href='" + menuItemData.url + "'>" + menuItemData.name + "</a>";
if (typeof menuItemData.submenu != 'undefined') {
ul += buildMenuHTML(menuItemData.submenu,level + 1);
}
ul += "</li>";
}
ul += "</ul>";
return ul;
}
Here is how the function is called initially: Code: buildMenuHTML(test,1); This is it's return value (with indentation added for readability): Code: <ul id='menu'>
<li><a href='menu1.html'>Menu 1</a>
<ul class='level2'>
<li><a href='menu1subitem1.html'>menu 1 subitem 1</a></li>
<li><a href='menu1subitem2.html'>menu 1 subitem 2</a></li>
</ul>
</li>
</ul>
'Menu 2' and 'Menu 3' don't show up! I'm sure it's something small that I'm overlooking, but any help would be appreciated. Hi all I'm well aware that I can't post assignments here and expect an answer, however, I have been staring at this code for so long. I feel I am close to the solution (to get the correct output to the browser) but I just cannot get it to count how many moves it takes. I don't want an answer, but a nudge in the right direction would be very grateful. As you can see from the code and the output, it will attempt to write to the browser how many moves, but only '0'. Code: function rollDie()
{
return Math.floor(Math.random() * 6) + 1;
}
/*
*searches for a number in a number array.
*
*function takes two arguments
* the number to search for
* the number array to search
*function returns the array index at which the number was found, or -1 if not found.
*/
function findIndexOf(number, numberArray)
{
var indexWhereFound = -1;
for (var position = 0; position < numberArray.length; position = position + 1)
{
if (numberArray[position] == number)
{
indexWhereFound = position;
}
}
return indexWhereFound;
}
//ARRAYS that represent the board -- you do not need to change these
//array of special squares
var specialSquaresArray = [1,7,25,32,39,46,65,68,71,77];
//array of corresponding squares the player ascends or descends to
var connectedSquaresArray = [20,9,29,13,51,41,79,73,35,58];
//VARIABLES used -- you do not need to change these
//the square the player is currently on
var playersPosition;
//play is initially at START
playersPosition = 0;
//what they score when they roll the die
var playersScore;
//the index of the player's position in the special squares array or -1
var indexOfNumber;
//MAIN PROGRAM
//TODO add code here for parts (iii), (iv)(b), (v), and (vi)
// start of question(iii)
playersScore = rollDie();
document.write(' Sco ' + playersScore);
playersPosition = playersScore + playersPosition;
document.write(', Squa ' + playersPosition);
indexOfNumber = findIndexOf(playersPosition, specialSquaresArray);
if (indexOfNumber != -1)
{
document.write(', Ladder to Squa ' + connectedSquaresArray[indexOfNumber]);
playersPosition = connectedSquaresArray[indexOfNumber];
indexOfNumber = -1;
}
document.write('<BR>')
// end of question(iii)
// start of question(iv)(b)
while(playersPosition<=80)
{
playersScore = rollDie()
document.write(' Sco ' + playersScore)
playersPosition = playersPosition + playersScore
document.write(', Squa ' + playersPosition)
indexOfNumber = findIndexOf(playersPosition, specialSquaresArray)
if(indexOfNumber != -1)
{
document.write(', Ladder to Squa ' + connectedSquaresArray[indexOfNumber]);
playersPosition = connectedSquaresArray[indexOfNumber];
}
document.write('<BR>');
}
var countMoves = 0;
while(countMoves <= 0)
{
document.write('You took ' + countMoves + ' moves to get out');
countMoves = countMoves + 1
}
/*for (var countMoves = 0; countMoves < playersPosition; countMoves = countMoves + 1)
{
countMoves = countMoves + playersPosition;
document.write('You took ' + countMoves + ' moves to get out');
}*/
// end of question(iv)(b)
// start of question (v)
/*if (playersPosition >=80)
{
document.write('The player is out');
}*/
// end of question (v)
</SCRIPT>
</HEAD>
<BODY>
</BODY>
</HTML>
Many thanks. Hello... Thanks for reading... I am getting an undefined error when i try to get a value from this array in the interior loop... Code: // This is the array I am trying to access AuditTable [0] = ["Visio Modifed date","Word Modified Date","User Status","User Comment","Last Audit","Audit Status","Audit Comment"] AuditTable [1] = ["11/23/2009 8:52:18 AM","missing","OK","user comment number 1","1/1/2009","ok","audit comment number 1"] AuditTable [2] = ["11/24/2009 12:21:19 AM","missing","Out of Date","Changes from 2008 not implemented","1/2/2009","Out of Date","needs update"] AuditTable [3] = ["11/22/2009 9:24:42 PM","missing","Incomplete","Document doesnt cover all possibilities","1/3/2009","Inadequate","needs update"] I have hard coded values and had success such as: Code: data = AuditTable[1][0] But when I put the vars associated with the loop in I get an undefined error - AuditTable[i] is undefined: Code: // produces error data = AuditTable[i][j] //Works but retrieves wrong data data = AuditTable[j][i] //Works but retrieves wrong data data = AuditTable[1][i] //Works but retrieves wrong data data = AuditTable[j][2] I must be trying to access the array incorrectly or something... I have defined all the vars, and tried many combinations, alerted the values of both vars so I can prove it is not a scope issue... Am I missing something obvious? Thanks much... Code: var reportArray=new Array();
var reportData, title, subTitle, data;
for(i in parmarray)// loop thru AuditTable array and get values
{
title = '<div style="font-family:verdana; font-size:14px; font-weight:bold; margin:25px 0px 5px 30px">';
title += namearray[i][0];
title += '</div>';
reportArray.push(title);//Take compiled variable value and put it into array
for(j=0; j < AuditTable[0].length; j++)// loop thru AuditTable array and get values
{
subTitle = AuditTable[0][j];//points to first row of AuditTable where the labels are
data = AuditTable[1][0];//points to the current row where actual data is
html = i + j +'<div style="font-family:verdana; font-size:12px; color:#696969; font-weight:bold; margin-left:30px;">';
html += subTitle;
html += '</div><div style="font-family:verdana; font-size:12px; color:#a9a9a9; margin-left:30px; margin-bottom:10px">';
html += data;
html += "</div>";
reportArray.push(html);// put results into array
}
}
Hi, I am doing some studying and we was to create a small loop using either the for loop, while loop or do while loop. I chose to do the for loop because it was easier to understand, but I want to know how to do the same using the while loop. Here is the for loop I have, but I cant figure out how to change to while loop. Code: for (var i = 0; i < 5; ++i)
{
for (var j = i; j < 5; ++j)
{
document.write(j + "");
}
document.write("<br />");
}
output is equal to: 01234 1234 234 34 4 How do you make the same using a while loop? it wont loop, as long as you enter something in the name field it will submit. also how do i stop from submitting if all fields are not filled out? any help will be appreciated) ====== function checkForm(form) { var len = form.elements.length; var h=0; for (h=0; h<=len; h++){ if ((form.elements[h].value==null) || (form.elements[h].value=="")){ alert("Please enter "+document.myForm.elements[h].name); document.myForm.elements[h].focus(); return false; } return true; } } ===body-== <FORM NAME="myForm" METHOD="post" ACTION="http://ss1.prosofttraining.com/cgi-bin/process.pl"> Name:<BR> <INPUT TYPE="text" size="30" NAME="name"><br> Email address:<BR> <INPUT TYPE="text" size="30" NAME="email address" onBlur="emailTest(this);"><br> Phone number:<BR> <INPUT TYPE="text" size="30" NAME="phone number"><br> Fax number:<BR> <INPUT TYPE="text" size="30" NAME="fax number"><p> <INPUT TYPE="submit" VALUE="Submit Data" onClick="return checkForm(this.form);"> <INPUT TYPE="reset" VALUE="Reset Form"> </FORM> |
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