|
JavaScript - Restarting A Function Without Reloading The Page
hi,
I have a google map which shows a car moving along a line that it reads from xml. This is the code that moves the map and the car image: Code: // Returns the bearing in radians between two points.
function bearing( from, to ) {
// See T. Vincenty, Survey Review, 23, No 176, p 88-93,1975.
// Convert to radians.
var lat1 = from.latRadians();
var lon1 = from.lngRadians();
var lat2 = to.latRadians();
var lon2 = to.lngRadians();
// Compute the angle.
var angle = - Math.atan2( Math.sin( lon1 - lon2 ) * Math.cos( lat2 ), Math.cos( lat1 ) * Math.sin( lat2 ) - Math.sin( lat1 ) * Math.cos( lat2 ) * Math.cos( lon1 - lon2 ) );
if ( angle < 0.0 )
angle += Math.PI * 2.0;
if (angle == 0) {crash;}
return angle;
}
function plotcar() {
var cosa = Math.cos(angle);
var sina = Math.sin(angle);
canvas.clearRect(0,0,32,32);
canvas.save();
canvas.rotate(angle);
canvas.translate(16*sina+16*cosa,16*cosa-16*sina);
canvas.drawImage(img,-16,-16);
canvas.restore();
}
//=============== animation functions ======================
function animate(d) {
if (d>eol) {
return;
}
var p = poly.GetPointAtDistance(d);
if (k++>=180/step) {
map.panTo(p);
k=0;
}
map.panTo(p);
marker.setPoint(p);
if (supportsCanvas) {
if (poly.GetIndexAtDistance(d)>lastVertex) {
lastVertex = poly.GetIndexAtDistance(d);
if (lastVertex == poly.getVertexCount()) {
lastVertex -= 1;
}
while (poly.getVertex(lastVertex-2).equals(poly.getVertex(lastVertex-1))) {
lastVertex-=1;
}
angle = bearing(poly.getVertex(lastVertex-2),poly.getVertex(lastVertex-1) );
plotcar();
}
}
setTimeout("animate("+(d+step)+")", tick);
}
function startAnimation() {
eol=poly.Distance();
map.setCenter(poly.getVertex(0),16);
map.addOverlay(new GMarker(poly.getVertex(0),G_START_ICON));
map.addOverlay(new GMarker(poly.getVertex(poly.getVertexCount()-1),G_END_ICON));
if (supportsCanvas) {
marker = new ELabel(poly.getVertex(0), '<canvas id="carcanvas" width="32" height="32"><\/canvas>',null,new GSize(-16,16));
map.addOverlay(marker);
canvas = document.getElementById("carcanvas").getContext('2d');
var p0 = poly.getVertex(0);
var p1 = poly.getVertex(1);
angle = bearing(p1,p0);
plotcar();
} else {
marker = new GMarker(poly.getVertex(0),{icon:car});
map.addOverlay(marker);
}
poly2 = new GPolyline([poly.getVertex(0), poly.getVertex(1), poly.getVertex(2)], 0,0);
// map.addOverlay(poly2);
setTimeout("animate(0)",2000); // Allow time for the initial map display
}
It works fine as you can see here but the problem is that if the user clicks the button again without reloading the page, the map moves but the car remains at its last point. From what I can figure out, this means that the startAnimation() function has restarted but the animate(d) function has not restarted. but trying to call the animate(d) function from the button, where the startAnimation() gets called, he Code: <input type="button" onclick="startAnimation();return false;" value="show bus route 1"> results in an error that d is not defined. is there some way of resetting the animate(d) function when the startAnimation() function gets called, so everything goes back to the start? Or is there some other way of "refreshing" everything without reloading the page? thanks in advance. Similar Tutorialsi am new to JS and need help in solving my code that's not reloading the page to download subcat list from db when you select the cat list? Any help is appreciable:
I have a set of tabs that are set with an href that adds a query string to the url such as "?t=1", meaning the first tab is selected. Technically it works just fine but every time I click a tab it reloads the page and I'm not entirely sure how to stop this. I'm using a jquery plugin to handle the query strings. Here's the plugin. Here's the piece of the code that matters: Code: var url = location.search;
var tab = $.query.get('t');
init(tab);
function init(tab){
$("div.tab").hide(); //hides all the content boxes related to the tabs
$("div#tab"+tab).fadeIn("fast"); //Shows the selected tab's content box
setInactive(); //Styles unselected tabs
setActive(tab); //Styles selected tab
}
Any help would be greatly appreciated. Hey all, I'm trying to make it so that when a user clicks on a radio button, the image that is related to the radio button is displayed next to it (without reloading the page). At the moment all it shows is the image related to the currently saved option, which I'd like to keep on page load. Is this possible? If so, I'd appriciate any help. Here is my code for the radio buttons. Thanks. Code: <tr valign="top">
<td id="community-legal-services-logo-selection">
<p><label><?php _e('<strong class="table_tags">Display the following Community Legal Services logo:</strong>'); ?></p>
<p><label for="cls-mono">
<input class="" id="cls-mono" name="cls_logo" type="radio" value="cls_mono" <?php if($general_options['cls_logo'] === 'cls_mono'){ echo 'checked="checked"'; } ?> />
<?php _e('Mono'); ?></label>
</p>
<p><label for="cls-color">
<input class="" id="cls-color" name="cls_logo" type="radio" value="cls_color" <?php if($general_options['cls_logo'] === 'cls_color'){ echo 'checked="checked"'; } ?> />
<?php _e('Colour'); ?></label>
</p>
<p><label for="cls-none">
<input class="" id="cls-none" name="cls_logo" type="radio" value="cls_none" <?php if($general_options['cls_logo'] === 'cls_none'){ echo 'checked="checked"'; } ?> />
<?php _e('None'); ?></label>
</p>
<p>
<label><?php _e('<span class="table_tags">Link to the Community Legal Services website<span>'); ?></label>
</p>
<p>
<input class="large_input_box" id="cls-link" name="cls_link" type="text" value="<?php echo $general_options['cls_link']; ?>" /></label>
</p>
</td>
<?php if($general_options['cls_logo'] && $general_options['cls_logo'] !== 'cls_none'){ ?>
<td>
<img id="community-legal-services-logo-preview" class="image-preview" src="<?php echo $general_options['cls_logo_path']?>" />
</td>
<?php } ?>
</tr>
he everyone please i want to know how to submit a form using ajax every 5 minutes without reloading page i have a huge form for exams and i need to submit the form without the need to wait until pressing submit because the user may wait to think about the answer a very long time.. so i want to submit the form and at the same time i cant reload the page as it is in normal submit form.. so how i can submit form in the background without letting the user knows that the form is submitted??? I just wrote an essay to discover it had logged me out and I lost everything. Grrrrrrr. Here goes again, simplified this time. I've got a sticky footer at the bottom of the page and a spry collapsible panel which expands to reveal content on mouse over. The problem I'm facing is that the page doesn't scroll down with it, only the scroll bar gets larger to accommodate for a manual scroll down. This is kind of useless because the user might not even realise that there's extra content there in the first place if it's not automatic. My question is, what's the best javascript code to use to automatically scroll the page down when the spry tab is opened and where would I insert it? I've tried all morning with no success so far! Thanks, Nick, I'm copy pasting this post this time round, I don't trust this website now hi, everyone, I'm struggling to figure out how to make my image automatically reload. particularly when the image is randomly selected from a folder. The timing seem to work as the first image disappear after 5 seconds as dictated in the first JavaScript but it simply stays black. Why is the next images not being loaded? http://www.lost-ear-studio.com I'm new with JavaScript big time and tonight is the first time I've really dived into it. Thank you for any advice. 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>Lost Ear Studio</title><link rel="stylesheet" href="style.css" type="text/css" />
<script type="text/javascript">
window.onload = startInterval;
function startInterval()
{
setInterval("startTime();",5000);
}
function startTime()
{
document.getElementById('time').innerHTML = Date();
}
</script>
<script type="text/javascript">
function resizeToMax(id){
myImage = new Image()
var img = document.getElementById(id);
myImage.src = img.src;
if(myImage.width > myImage.height){
img.style.width = "100%";
} else {
img.style.height = "100%";
}
}
</script>
</head>
<body>
<div id="time">
<script type="text/javascript" language="JavaScript">
NumberOfImagesToRotate = 107;
FirstPart = '<img id="bg" src="images/bg/bg_';
LastPart = '.jpg" onload="resizeToMax(this.id)">';
function printImage() {
var r = Math.ceil(Math.random() * NumberOfImagesToRotate);
document.write(FirstPart + r + LastPart);
}
</script>
<script type="text/javascript" language="JavaScript">
printImage();
</script>
</div>
Hi, I have a script that writes to an IFRAME, it writes dynamically and then needs to reload it server side. Anybody knows how to do it? I'm joining the code of my attempt but it appears to be reloading the IFRAME on the client side therefore causing an activeX error since I am running this in FireFox: PHP Code: var frTraductionID = document.getElementById("frTraduction"); frTraductionID = (frTraductionID.contentWindow) ? frTraductionID.contentWindow : (frTraductionID.contentDocument.document) ? frTraductionID.contentDocument.document : frTraductionID.contentDocument; var x=frTraductionID.document.getElementById("hCount").value; var ifrm = document.getElementById("ifUPDATE"); ifrm = (ifrm.contentWindow) ? ifrm.contentWindow : (ifrm.contentDocument.document) ? ifrm.contentDocument.document : ifrm.contentDocument; ifrm.document.open(); ifrm.document.write('<scr' + 'ipt language=javascript type="text/javascript" runat=server>'); ifrm.document.write('var fso = new Active' + 'XObject("Scripting.FileSystemObject"); '); ifrm.document.write('var f = fso.OpenTextFile("' + sFileName + '", 2, true); '); for (var i=0;i<x;i+=1) { var sString=""; sString +="f.WriteLine('"; sString +=frTraductionID.document.getElementById("h"+i).value; sString +='="'; sDetail=frTraductionID.document.getElementById("d"+i).value.replace('"', ' '); sDetail=sDetail.replace("'", "`"); sString +=sDetail; sString +='"'; sString +="')"; sString +="; "; alert("i = " + i + " str = " + sString); ifrm.document.write(sString); } ifrm.document.write("f.Close();"); ifrm.document.write("</Scr" + "ipt>"); ifrm.document.close(); document.getElementById('ifUPDATE').contentWindow.location.reload(true); any help would be appreciated. how can refresh my website without interrupting of main content. suppose user reading a post in my website . during that i want to refresh my ads in my website without interrupting of main content. ex: go this link. http://www.novamov.com/video/xl58zuy4sd1a9 in this page site will automatically refreshes the ads every 1 minute without interrupting of main content. how can i do that in same manner. please help me. I started on the following page (part of an asp.net solution), but the damned thing keeps reloading. Anyone able to spot the problem? Cheers! 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><title>
Untitled Page
</title></head>
<body>
<form name="form1" method="post" action="jstest3.aspx" id="form1">
<div>
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwULLTEwMjYxNzg2NjFkZMc95XPGgLBVJLhpE9SpA+WIaf+s" />
</div>
<div>
<input type="hidden" name="__EVENTVALIDATION" id="__EVENTVALIDATION" value="/wEWAwKUmIGgCgLs0bLrBgKM54rGBm+z7+T68pYhg8H9O6b/Ex0HpZ0A" />
</div>
<div>
<input name="TextBox1" type="text" id="TextBox1" />
<input type="submit" name="Button1" value="Button" id="Button1" />
<script language="javascript" type="text/javascript">
if (parent != null) {
tb = parent.document.getElementById("TextBox");
tbLocal = document.getElementById('TextBox1');
if (tb != null)
tbLocal.value = tb.value;
btn = document.getElementById('Button1');
if (btn != null)
btn.click();
}
</script>
</div>
</form>
</body>
</html>
Hi there. I am not all that great at coding, but would like to put together a windows sidebar gadget that keeps track and logs specific activities. Some daily, some weekly, some monthly, ect. I need to find a way to refresh a small imported java script every time a button is pressed without refreshing the entire form. Would also like to have it refresh automatically every hour if possible. The line of code to reload is <script src="http://www.dgdevelco.com/quotes/quotestxt.js"></script>. Here is the entire code: <html> <head> <title>Form</title> <style> body { margin: 0; width: 130px; height: 400px; background-image: url(bg.jpg); } </style> <script type="text/javascript"> /*Enable Gadget Setting Functionality.*/ System.Gadget.settingsUI="settings.html"; </script> </head> <g:background style="position:absolute;top:0;left:0;z-index:-999;no=repeat;" /> <form name="Form"> <table width="128" style="position: absolute; left: 1px; top: 1px;"> <tr> <td><input type="checkbox" name="item" value="01"></td> <td style="font-family: 'Arial Narrow'; font-size: 10px;">Item 1</td> </tr> <tr> <td><input type="checkbox" name="item" value="02"></td> <td style="font-family: 'Arial Narrow'; font-size: 10px;">Item 2</td> </tr> <tr> <td><input type="checkbox" name="item" value="03"></td> <td style="font-family: 'Arial Narrow'; font-size: 10px;">Item 3</td> </tr> <tr> <td><input type="checkbox" name="item" value="04"></td> <td style="font-family: 'Arial Narrow'; font-size: 10px;">Item 4</td> </tr> <tr> <td><input type="checkbox" name="item" value="05"></td> <td style="font-family: 'Arial Narrow'; font-size: 10px;">Item 5</td> </tr> <tr> <td><input type="checkbox" name="item" value="06"></td> <td style="font-family: 'Arial Narrow'; font-size: 10px;">Item 6</td> </tr> <tr> <td><input type="checkbox" name="item" value="07"></td> <td style="font-family: 'Arial Narrow'; font-size: 10px;">Item 7</td> </tr> <tr> <td><input type="checkbox" name="item" value="08"></td> <td style="font-family: 'Arial Narrow'; font-size: 10px;">Item 8</td> </tr> <tr> <td><input type="checkbox" name="item" value="09"></td> <td style="font-family: 'Arial Narrow'; font-size: 10px;">Item 9</td> </tr> <tr> <td><input type="checkbox" name="item" value="10"></td> <td style="font-family: 'Arial Narrow'; font-size: 10px;">Item 10</td> </tr> <tr> <td colspan="2"> <input type="submit" value="Submit" style="font-family: 'Arial Narrow'; font-size: 10px; float: left;"> <input type="reset" value="Reset" style="font-family: 'Arial Narrow'; font-size: 10px; float: right;"> </td> </tr> <tr> <td colspan="2" align="right"> <input type="button" name="Report" value="Report" style="font-family: 'Arial Narrow'; font-size: 10px;"> </td> </tr> <tr> <td colspan="2"> <font style="font-family: 'Arial Narrow'; font-size: 10px; text-align: center;"> <script src="http://www.dgdevelco.com/quotes/quotestxt.js"></script> </font </td> </tr> </table> </body> </html> I have tried iframe and while it looks nice for text wrapping, it will still reload the entire gadget. Any suggestions (preferably simple so my little mind and wrap around it) would be great! Thanks for looking. :) I have an application I'm working on and here is what I'm trying to do: I want users to work from a main application. Certain things will need to be done but the users wont want to see the main screen go away while doing these certain things. So my idea is to just open a new window with the content they need, they'll make their changes, the new window will close but then I want the main page to reload. What I've done now is at the end of the script that will be run prior to the new window closing is added this (its a php app): Code: echo "<script>window.close();</script>"; echo "<script>window.opener.location.reload(true);</script>"; Sometimes this works in IE and Firefox but never in Chrome. I know I've seen this done before on other sites, but I cant think of what they are. Can anyone tell me a reliable way that works in all browsers? <frameset rows="30%,70%> <frame src="page1.html" name="name1" frameborder="0"></frame> <frame src="page2.html" name="name2" frameborder="0"></frame> </frameset> in above code I used page1.html & page2.html as frame. Both include same javascript file having two function name fun1() & fun2(). as both are separate frame both have there own copy function page1.html fun1() fun2() page2.html fun1() fun2() I call fun2() from page2.html and inside that function I want to call page1.html's fun1(). fun1() in page1.html and fun1() in page2.html both return different result because of there global variables. Is there any way to call fun1()-page1.html from the fun2()-page2.html? Hi guys, i have a code where if you press on a word some words disappear and new ones appear and then when you press on the word again everything goes back to normal. I am trying to get it so that after the first click if i press back it should go back to normal instead of having to press the word again but all i am getting at the moment when i press back is the the page with the changed text. Evening folks I'm -very- green when it comes to Javascript, but I'm working my way up. The problem right now I'm running in to now is when trying to implement a website function that allows two buttons (previous, and next) to do their respective tasks. I can get the script to go forward and back, however when I jump to another page in the frame (this is all through iframes), when clicking either button, it will take me to the last page I had stopped on. A little hard to explain, but maybe seeing the code will give you a better idea. <script type="text/javascript"> var pNum=0; var maxPage=10; function next() { pNum++; if (pNum > maxPage) pNum=10; document.getElementById("frame").src="page"+pNum+".htm"; } function prev() { pNum--; if (pNum < 0) pNum=0; document.getElementById("frame").src="page"+pNum+".htm"; } </script> It's nothing fancy, but it's apparently keeping the last page it was on in memory instead of resetting itself, so when I go back to the start page it starts on page 0 and goes to page 10; right now I can stop on page 5, click a link to go back to the starting default page, and when using the 'next page' button it will start on 6 and go from there. Any help or advice would be appreciated. HI I have tow page and the first page open a new window with javascript(by using window.open).Now I want to call a javascript function that is in the first page from the second page and for that i use parent.function_name but it doesn't work.How can do so? thanks I've searched everywhere for help on how to do this... I have a website for tanning salon services. Salon A's page has links for 4 possible equipment choices -[I] (diamond, platinum, gold, bronze levels) on the Sunbeds page. Sunbeds page has 2 iFrames, top and bottom, that are changed by 4 functions - changediamond(), changebronze(), etc. based on the selection. I need to be able to click a link on the Salon page that will take me to the corresponding function on the Sunbeds page... Here's what I have so far: Salon A page Code: <a href="sunbeds.htm?javascript:changediamond()"><img src="images/nr_diam_sm2.jpg" alt="Diamond Level Sunbeds" /></a>
(thru)
<a href="sunbeds.htm?javascript:changebronze()"><img src="images/nr_brnz_sm2.jpg" alt="Bronze Level Sunbeds" /></a>
Sunbeds page Code: <SCRIPT language="JavaScript">
function changediamond()
{
parent.FRAME1.location="sb_top_ct1.htm";
parent.FRAME2.location="sb_bot_ct1.htm";
}
(thru)
function changebronze()
{
parent.FRAME1.location="sb_top_ct4.htm";
parent.FRAME2.location="sb_bot_ct4.htm";
}
</script>
.
..
...
..
.
<a href="javascript:changediamond()"><img src="images/diamond_sm2.jpg" alt="Diamond Level Sunbeds" /></a>
(thru)
<a href="javascript:changebronze()"><img src="images/bronze_sm2.jpg" alt="Bronze Level Sunbeds" /></a>
The links take me to the correct page but not the function. Once I'm there I can select the functions and the iFrame change works great. I'm just at a loss for passing along the data string ie sunbeds.htm?javascript"changediamond() I would certainly appreciate any help and advice you could share. I'm sure it's pretty simple but for a JS newbie, it's frustrating! Hi, The point is to have a PHP code on the same page as a javascript calling the PHP function. I am able to make this work when the PHP code is on an external file. But when all but XSL are on the same page, it won't do what it should. How to make this work? The PHP is correct as it is by its self. And so is the javascript as it is for calling other PHP code. The combination of these two in this case just won't work. PHP and Javascript: [CODE] <html ><head><title>Untitled 1</title></head> <body> <?php function dateToDayOfWeek($xmlDate, $useFormat = 'l') { $rd = 'Unknown'; if (count($xmlDate) == 1) { $element = $xmlDate[0]; if ($element instanceof DOMElement) { $rd = date($useFormat, strtotime($element->nodeValue)); } } return $rd; } function axasal(){ date_default_timezone_set('UTC'); $xslDoc = new DOMDocument(); $xslDoc->load("xslfile.xsl"); // Here comes the xsl file name. $xmlDoc = new DOMDocument(); $xmlDoc->load("http://free.worldweatheronline.com/feed/weather.ashx?q=milan,italy&format=xml&num_of_days=5&key=af8b2fc417222733111712"); $proc = new XSLTProcessor(); $proc->registerPHPFunctions('dateToDayOfWeek'); $proc->importStylesheet($xslDoc); echo $proc->transformToXML($xmlDoc); } ?> <script type="text/javascript"> function call_php(){ document.getElementById("place").innerHTML="<?php echo axasal(); ?>"; } </script> <form name = "form"> <input type = "button" name = "aaa" id = "aaa" value = "Click me" onclick = "call_php()" /> </form> <div id="place"></div> </body></html> [CODE] XSL: [CODE] <?xml version="1.0"?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlnshp="http://php.net/xsl"> <xsl:template match="data"> <html> <head><title></title></head> <body> <table> <tr> <xsl:apply-templates select="./weather" /> </tr> </table> </body> </html> </xsl:template> <xsl:template match="weather"> <td style="width: 97px"> <p><xsl:value-of select="php:function('dateToDayOfWeek', date)" /></p> <p><xsl:apply-templates select="./weatherIconUrl" /></p> </td> </xsl:template> <xsl:template match="weatherIconUrl"> <img> <xsl:attribute name="src"> <xsl:value-of select="." /> </xsl:attribute> </img> </xsl:template> </xsl:stylesheet> [CODE] The smiley face on the second line of the last code is ':' and 'p'. I'm new to javascript and have come across what I'm sure its a really easy problem to solve. I want a page with a hyperlink that passes a variable to another 'pop-up' page (in this case a name, its just an example) and new pop-up page prints a message followed by the variable thats passed. Here is the code as it is right now Code:
<html>
<head>
<script language="javascript" type="text/javascript">
function popitup(a)
{
var reply = 'a';
newwindow=window.open('','name','height=200,width=150');
var tmp = newwindow.document;
tmp.write('<html><head><title>popup</title>');
tmp.write('</head><body><p>"Hello there" + reply </p>');
tmp.write('<p><a href="javascript:self.close()">close</a> the popup.</p>');
tmp.write('</body></html>');
tmp.close();
}
</script>
</head>
<body>
<a href="testpopup.html" onclick="popitup('Toby')"
>Link to popup</a>
</body>
</html>
In short, I just want the pop-up page to print 'Hello there Toby' or whatever name I choose to pass across. Any help much appreciated!! The 'testpopup.html' url is just the initial webpage. this is my html page.. Code: <html>
<head>
<script type="text/javascript" language="JavaScript">
function general_formats()
{
window.open('http://www.test.com/general_formats.php');
}
</script>
</head>
<body>
<a href="general_formats.php"><onclick="general_formats(); return false">General Formats</a>
</body>
</html>
When i click ' general Formats ' , a window is opened , i dont need that . What i need is , when i click the link , it should direct to general_fomats.php.. please help me to solve it . .any help will be appreciated . Hi, I'm making a page and I'd like to start an applet (Jmol) and display it near the button of the current page when a button is clicked. However, I get a syntax error: "missing ; before statement" (Note: this javascript is part of a cgi page) The code I have is as follow: Code: <script type="text/javascript" SRC="../jmol-12.0.48/Jmol.js"></script>
<script
type="text/javascript"
language="Javascript">
function loadJmol(SMILES)
{
document.getElementById("viewMol").innerHTML = 'jmolInitialize("../jmol-12.0.48", true); jmolAppletInline(300, \'\', "load \$' + SMILES + '");' ;
}
</script>
...
print "<a href=javascript:loadJmol(\"SomeString\")>View</a>";
print "<script id=\"viewMol\"></script>";
The syntax error occurs at the single quote in ...").innerHTML = 'jmolInitialize("... I have been able to get this applet to run when not in a function. Has anyone run into this before and can give me a hand? Thanks, Tom |
|||||||