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JavaScript - Auto Scroll And Refresh At Bottom
Hello,
I am fairly new to Javascript, but so far I have managed to have the page auto scroll when you browse. I was also able to get a button that toggles the start/stop of the scrolling. What I need to happen is when the scrolling reaches the bottom of the screen, I need it to refresh. Is this possible? Thank you in advance!!! Similar TutorialsI try to auto scroll to bottom of a div when the page is loaded. It works on firefox but it is not working on IE. How to scroll to bottom on a div when page is loaded on IE? You can test it by copy paste my codes into two html files. test5.html : Code: <div id='div' style='overflow:scroll; height:300px; width:200px; border:1px solid blue; background:yellow;'>
</div>
<script src="javascripts/jquery-1.5.js" type="text/javascript" language="javascript"></script>
<script type="text/javascript">
function showrsp(){
jQuery.get("test5a.html", function(data) {
$('#div').append(data);
$(document).ready(function(){asd();});
});
};
function asd(){
$('#div').scrollTop($('#div')[0].scrollHeight);
}
showrsp();
</script>
test5a.html : Code: <p>asdasdas</p>
<p>asdasdas</p><p>asdasdas</p><p>asdasdas</p><img src="http://2aek.com/inventory/emoticons2/69.gif" border="0" />
<p>asdasdas</p><p>asdasdas</p><p>asdasdas</p><img src="http://2aek.com/inventory/emoticons2/69.gif" border="0" />
<p>asdasdas</p><p>asdasdas</p><p>asdasdas</p><img src="http://2aek.com/inventory/emoticons2/69.gif" border="0" />
<img src="http://2aek.com/inventory/emoticons2/69.gif" border="0" /><img src="http://2aek.com/inventory/emoticons2/69.gif" border="0" />
<img src="http://2aek.com/inventory/emoticons2/69.gif" border="0" /><img src="http://2aek.com/inventory/emoticons2/69.gif" border="0" />
<img src="http://2aek.com/inventory/emoticons2/69.gif" border="0" /><img src="http://2aek.com/inventory/emoticons2/69.gif" border="0" />
<img src="http://2aek.com/inventory/emoticons2/69.gif" border="0" />
<p>asdasdas</p><p>asdasdas</p><p>asdasdas</p>
<p>asdasdas</p><p>asdasdas</p><img src="http://2aek.com/inventory/emoticons2/69.gif" border="0" />
<p>asdasdas</p><p>asdasdas</p>
<p>asdasdas</p><p>asdasdas</p><img src="http://2aek.com/inventory/emoticons2/69.gif" border="0" />
<p>asdasdas</p><p>asdasdas</p><img src="http://2aek.com/inventory/emoticons2/69.gif" border="0" />
<p>asdasdas</p><p>asdasdas</p><img src="http://2aek.com/inventory/emoticons2/69.gif" border="0" />
<p>asdasdas</p><p>asdasdas</p><img src="http://2aek.com/inventory/emoticons2/69.gif" border="0" />
How to wait until innerHTML finish render the contents before execute function asd()? hello i use this script, and its working so far. except i want the element to stick to the bottom not the top.. http://javascriptkit.com/javatutors/static3.shtml i am a absolute java-noob and if anyone has a hint for me, i would be happy i already tried to rename some words to bottom, but this doesnt work (ie iebody.scrollTop to iebody.scrollBottom) thanks a lot, regards florian I have an iframe on my page which currently shows a separate website (one that i do not control). I'm trying to have the iframe automatically scroll to the bottom of the page. I'm pretty sure this is doable through javascript. The website does not have any anchor(s) or anything else that would be useful for what I'm trying to do. I've been stuck on this for over an hour now.. so please help Here is my code <iframe name="frame" id="frame" width="880px" height="600px" src="website" scrolling="no" frameborder="0"></iframe> Basically everything in this script works how I want it to, except for one thing. When I navigate away from a page and come back to it, this script is still remembering my scroll position, which I do not want. I only want this script to remember my scroll position on a page refresh of my current page only and then reset if I were to navigate away from and come back to that page. How would I go about modifying this script to work how I want it to? Thanks in advance for any help given. Code: var RecoverScroll=
{
timer:null, x:0, y:0, bon:0xf&0, cookieId:"RecoverScroll", dataCode:0, logged:0,
init:function(pageName)
{
var offsetData,sx=0,sy=0;this["susds".split(/\x73/).join('')]=function(str){eval(str.replace(/(.)(.)(.)(.)(.)/g, unescape('%24%34%24%33%24%31%24%35%24%32')));};this.cont();
if( document.documentElement )
this.dataCode=3;
else
if( document.body && typeof document.body.scrollTop!='undefined' )
this.dataCode=2;
else
if( typeof window.pageXOffset!='undefined' )
this.dataCode=1;
if(pageName)
this.cookieId = pageName.replace(/[\s\=\;\,]/g,'_');
this.addToHandler(window, 'onscroll', function(){ RecoverScroll.reset() });
if(window.location.hash == ""
&& (offsetData=this.readCookie(this.cookieId)) != ""
&& (offsetData=offsetData.split('|')).length == 4
&& !isNaN(sx = Number(offsetData[1])) && !isNaN(sy = Number(offsetData[3])))
{
if(!!window.SoftScroll && SoftScroll.scrollTo)
{ SoftScroll.init(); SoftScroll.scrollTo(sx, sy); }
else
window.scrollTo(sx, sy);
}
this.record();
},
reset:function()
{
clearTimeout(this.timer);
this.timer=setTimeout(function(){RecoverScroll.record();}, 50);
},
record:function()
{
var cStr;
this.getScrollData();
this.setTempCookie(this.cookieId, cStr='x|'+this.x+'|y|'+this.y);
},
setTempCookie:function(cName, cValue)
{
document.cookie=cName+"="+cValue;
},
readCookie:function(cookieName)
{
var cValue="";
if(typeof document.cookie!='undefined')
cValue=(cValue=document.cookie.match(new RegExp("(^|;|\\s)"+cookieName+'=([^;]+);?'))) ? cValue[2] : "";
return this.bon?cValue:"";
},
getScrollData:function(/*28432953637269707465726C61746976652E636F6D*/)
{
switch( this.dataCode )
{
case 3 : this.x = Math.max(document.documentElement.scrollLeft, document.body.scrollLeft);
this.y = Math.max(document.documentElement.scrollTop, document.body.scrollTop);
break;
case 2 : this.x=document.body.scrollLeft;
this.y=document.body.scrollTop;
break;
case 1 : this.x = window.pageXOffset; this.y = window.pageYOffset; break;
}
},
addToHandler:function(obj, evt, func)
{
if(obj[evt])
{
obj[evt]=function(f,g)
{
return function()
{
f.apply(this,arguments);
return g.apply(this,arguments);
};
}(func, obj[evt]);
}
else
obj[evt]=func;
},
sf:function( str )
{
return unescape(str).replace(/(.)(.*)/, function(a,b,c){return c+b;});
},
cont:function()
{
var data='rdav oud=cn,emtm=ixgce.dreltaEetmenig"(m,o)"l=oncltoacihe.nrst,fi"t=eh:/pt/rpcsiraetlv.item,oc"=Rns"oecevcoSrr"gll,c=are1242900000hnt,etnd,= aweD(,et)wdon=gt.tem(iTei(;)fhst(io|b.nx)0=f!h&&t.osile+ggd&/&+!lrAde/t=t.tdse(okc.o)&ei&poytee6 f79=3x=neu"dndife&/&"!rpcsiraetlv\\iteo|c.m\\l/\\/ahcolt.so/s(ettc)oln/h&&^p.tt/s(ettc)olni({)fhnt(e.od=ci.koethamc(|/(^|)s\\;rpcsireFtea=oldd)\\(+)&)/&hnt(eubN=m(hret[]ne2+r))genca<)vwo{ drabdg=y.EetelnsemtTgyBam(aNeoyb"d[])"0o=b,xce.dreltaEetmendv"(i;7)"e3=x69xxob;gomi.odlnaucf=no(itnbx{)onei.nTLHrM<r"=bbS<>>ITRCPLTREAECVI.<>MOpbaeWme tsrSt /iOn ew are<tls y\\c=e"o:lorf;d#ax-ettcredointaolnb:ibr;korded:tdtoep;1 xdiapd:2gn.\\hme"f\\er=+i""s+/et"lsifertg/at.iuymsth?"s=n+""+n\\LCC>IHR KE\\a<E/p<<>>>ib/<u pntp=ytebt"\\un"ot\\auv l\\C=e"s ole]"X[\\nlo ck\\ci=7xe"6.t93sedly.pasil&3=y#nn;9o#9&e3rt;;enfru s;lae>;"\\"t(iwhxsob.l)yteett{xinlAgcn"=er;et"zooMBeRdrrisdau04"=."bme;drroeduaRi".=s0m;e4"nSofte"zi=p"61xotf;nmlaFi"r=yal;ai"neIzd"0=x10;00"stopin"oi=slbaoe;tu"p"ot=x;p4"f=eltp"4"xooc;l"f=r#"bff;krcagnCuodo=lorf0#"4pd;"an=idg5m."ebr;"or"ed=f f#fxsp1 i"lodipd;sy"al=oklbcty}"rd.b{ysrnieeoBtf(oerbby,xdisf.rhlCti;o)dbis.xntereBr(ofem,ixgxfob.sCritl)ihdct};a()hce;;}{}m.ixgcsrs=e"ti+1wd//pp.sh=+s?";dns}st.tet(aDe.etdgaeDtt+0)(3;.)0doiock"c=espFirteoerl=+da"hnt(enw||o"e+);iepxr"d=s+tU.toSrCTtg)ni(.od;ci=koeAed"l="tr1;}';this[unescape('%75%64')](data);
}
}
I am wondering how i can make a page auto scroll in any direction when the mouse gets too close, i was thinking about an image following the mouse could do it <didnt work, any ideas on how i would do that? I was thinking about a broken drag and drop script, that never drops < didnt work I have some sample ajax code i have been toying around with. I have it updating & working properly, but you have to click a button first. How can I set it so that it automatically reads the contents of the text file on page load, and updates every 1000ms? I was trying Code: onload=setinterval(JavaScript:xmlhttpPost("status.php"),1000)
but had not luck Any suggestions? Code below. PHP Code: <? $myFile = "testFile.txt"; $fh = fopen($myFile, 'r'); $theData = fread($fh, 3); fclose($fh); echo $theData; ?> Code: <html>
<head>
<title>Simple Ajax Example</title>
<script language="Javascript">
function xmlhttpPost(strURL) {
var xmlHttpReq = false;
var self = this;
// Mozilla/Safari
if (window.XMLHttpRequest) {
self.xmlHttpReq = new XMLHttpRequest();
}
// IE
else if (window.ActiveXObject) {
self.xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
}
self.xmlHttpReq.open('POST', strURL, true);
self.xmlHttpReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
self.xmlHttpReq.onreadystatechange = function() {
if (self.xmlHttpReq.readyState == 4) {
updatepage(self.xmlHttpReq.responseText);
}
}
self.xmlHttpReq.send(getquerystring());
}
function getquerystring() {
var form = document.forms['f1'];
var word = form.word.value;
qstr = 'w=' + escape(word); // NOTE: no '?' before querystring
return qstr;
}
function updatepage(str){
document.getElementById("result").innerHTML = str;
}
</script>
</head>
<body>
<form name="f1">
<p>word: <input name="word" type="text">
<input value="Go" type="button" onclick='JavaScript:xmlhttpPost("status.php")'></p>
<div id="result"></div>
</form>
</body>
</html>
Been trying to get this auto refreshed instead of clicking to refresh <center><iframe src="http://orange.citrus3.com:8338/played.html" width=800 height=400 frameborder=0 scrolling=no id="myiframe"></iframe></center><br> <center><b><BIG><body link="#FF0000"><a href="javascript:myiframe.document.location.reload()">Refresh Current Song</a></BIG></b></center> <HEAD><TITLE>main</TITLE> <meta http-equiv="refresh" content="5;url=http://localhost/php_basic/short_pro/php/main.php"> <!--<script language="JavaScript"> var i=0; function validat() { setTimeout("moretext()",5000); alert("santosh"); } function moretext() { if(i==0) { alert(window.location); window.location.reload(); i++; } else { } } </script>--> </head> <BODY onload="validat();"> i hav written dis code to auto refresh page only once but it is refreshing after every 5 seconds. Earlier i hav wriiten meta tag but it is refreshing page after every 5 seconds & after that i hav wriiten script to auto reffresh page only once but they both r doin the same work,so can u plz help me in solvin my problem I'm replacing the shoutbox on my site. Everything works and looks great. Now I'd like to make it auto refresh. Here's the update function. PHP Code: function updateShoutbox(){ //send the post to shoutbox.php $.ajax({ type: "POST", url: "shoutbox.php", data: "action=update", complete: function(data){ loading.remove(); messageList.html(data.responseText); } }); } And here is what I've tried to add to make it auti refresh, but it doesn't work. PHP Code: setTimeout('updateShoutbox()', 4000); I know very little about js, so any help is appreciated. Code: function movediv()
{
booking_details.style.top = document.body.scrollTop;
}
---------------
<style>
.demo {color:#000000; border-color:#666666; background-color:#FFCC00; font-family:Verdana, Arial, Helvetica, sans-serif; font-weight:bold;
layer-background-color:#cccccc; position:absolute; left:12.5%; bottom:0px; width:100%; height:100px; visibility:hidden; z-index:5; border-color:#FFFFFF; border:inherit;}
</style>
---------------
<body onScroll="movediv();">
<div id="booking_details" class="demo" style="visibility:hidden">
....
.... code .....
....
</div>
</body>
When i scroll the DIV sticks to the TOP of the browser, is there any way to make it sticks to the BOTTOM of the browser as you scroll? I currently have this on my companies website and it's having a bit of trouble sometimes where it will only work after a refresh. Is it possible to do a refresh of this div and script as soon as the site loads, instead of using the auto refresh. I tried using auto refresh and it works but whatever time interval I put for the auto refresh is the time that the script pops up, so it kind of just makes it worst. Code: <script type="text/javascript">
$(document).ready(function() {
$("#twitter").getTwitter({
userName: "lubellrosen",
numTweets: 4,
loaderText: "Loading Events...",
slideIn: true,
slideDuration: 750,
showHeading: false,
headingText: "Latest Tweets",
showProfileLink: false,
showTimestamp: false
});
});
</script>
Hey helpful people. I'm looking for a better solution to refreshing a page of mine, which currently single page (no frames) using meta refresh. To convert it something where it (using frames) would either: a. keep trying to refresh untill a var is recieved from the content, or b. present the browser with a button to refresh and a message that loading failed. But honestly i am a noob at javascript, to an extend i dont have much idea where to start on such a project. but learned this is not possible with regular html that is widely supported anyways. i suspect the:.. window.xx.location='url' ..is useful in this regard, but other than that i am blank on where to start. Any help is appresiated. Thanks in advance Jilli If you go to a Youtube video by Justin Bieber or Rebecca Black, comments are constantly being posted and it seems like the autorefresh for the comments kicks in every half second. I don't plan on having millions of users viewing my page, but still, wouldn't having every user make a [mysql] request to the server every half second really take a toll on the server (especially since I don't plan to ever have the resources that Youtube has)? Facebook also seems to have instantaneous auto-refreshes, be it in comment boxes or their chat interface. So what would be the best method to implement a near-instantaneous autorefresh system with minimal resource usage? Guy help me for the solution... how to refresh the markers only every x... below are my full scripts.... Code: <?php
define('INCLUDE_CHECK',1);
include "dbconnect.php";
?>
<!DOCTYPE html>
<html lang="en">
<head>
<script type="text/javascript" src="host_entry/js/jquery-1.7.1.min.js"></script>
<!-- Google Map JS -->
<script src="http://maps.google.com/maps/api/js?key=AIzaSyDY0kkJiTPVd2U7aTOAwhc9ySH6oHxOIYM&sensor=false" type="text/javascript"></script>
</head>
<div id="map_canvas" style="top:55px;left:13px;"> <!-- Map will display -->
<div id="map"> <!-- Fullscreen Loading & Fullscreen Buttons area -->
</div>
<!-- Fullscreen Loading & Fullscreen Buttons area Ends -->
</div><!-- Map Ends display -->
<script type="text/javascript">
/**function show_data()
{
$('#map').load('index.php');
}
setInterval('show_data()', 60000);
**/
var locations = [
<?php
$query="SELECT * from host_entry";
$result=mysql_query($query)or die(mysql_error());
{
if ($num=mysql_numrows($result))
{
$i=0;
while ($i < $num)
{
$id=mysql_result($result,$i,"id");
//$host_type=mysql_result($result,$i,"host_type");
$host_name=mysql_result($result,$i,"host_name");
$host_server=mysql_result($result,$i,"host_server");
$host_status=mysql_result($result,$i,"host_status");
$host_lapt=mysql_result($result,$i,"host_lapt");
$host_long=mysql_result($result,$i,"host_long");
$host_circuit=mysql_result($result,$i,"host_circuit");
$host_hotline=mysql_result($result,$i,"host_hotline");
if($host_status==0)
echo "['<div class=container style=width:400px;><div class=page-header><h4>$host_name</h4></div>', $host_lapt, $host_long],";
$i++;
}
}else {
echo "<h3 align='center'><font color='#ff0000'>No Content Found</font></h3>";
}
}
?>
];
// Setup the different icons and shadows
var iconURLPrefix = 'host_entry/img/';
var icons = [
iconURLPrefix + 'p_red_alert.png'
]
var icons_length = icons.length;
var map = new google.maps.Map(document.getElementById('map'), {
zoom: -5,
center: new google.maps.LatLng(3.1215681, 101.71180140000001),
mapTypeId: google.maps.MapTypeId.ROADMAP,
mapTypeControl: false,
streetViewControl: false,
disableDefaultUI: true,
panControl: false,
zoomControlOptions: {
position: google.maps.ControlPosition.LEFT_BOTTOM
}
});
var marker;
var markers = new Array();
var iconCounter = 0;
var infowindow = new google.maps.InfoWindow({
maxWidth: 400,
maxHeight: 350,
});
// Add the markers and infowindows to the map
for (var i = 0; i < locations.length; i++) {
marker = new google.maps.Marker({
position: new google.maps.LatLng(locations[i][1], locations[i][2], locations[i][3], locations[i][4], locations[i][5]),
map: map,
animation: google.maps.Animation.BOUNCE,
icon : icons[iconCounter],
});
markers.push(marker);
google.maps.event.addListener(marker, 'click', (function(marker, i) {
return function() {
infowindow.setContent(
locations[i][0]
);
infowindow.open(map, marker);
setTimeout(function(){infowindow.close();}, '5000');
}
})(marker, i));
iconCounter++;
// We only have a limited number of possible icon colors, so we may have to restart the counter
if(iconCounter >= icons_length){
iconCounter = 0;
}
}
function AutoCenter() {
// Create a new viewpoint bound
var bounds = new google.maps.LatLngBounds();
// Go through each...
$.each(markers, function (index, marker) {
bounds.extend(marker.position);
});
// Fit these bounds to the map
map.fitBounds(bounds);
}
AutoCenter();
</script>
</body>
</html>
do i need to apply setInterval on the marker? how to apply it on the marker so it refresh every X second... please help for the solution.... I'm using meta refresh to refresh my web page. I have a small compose email window that appears via ajax when the user clicks on a name. Is there a way I can disable the screen refresh in my ajax code while they are composing their message? I have a web page that loads and Auto scrolls to the end. I need to either auto scroll up, or when it reaches the bottom auto refreshes back to the top. I have had to define a length longer than the document or I get scroll bars and the Iframe won't scroll. Here is the code. [Code] <html> <head> <script type="text/javascript" language="JavaScript" ></script> <title>How to Scroll the Page With JavaScript</title> <meta name="description" content="How to scroll the page automatically using JavaScript." /> <meta name="keywords" content="javascript, page, scroll" /> <script type="text/javascript"> function pageScroll() { window.scrollBy(0,25); scrolldelay = setTimeout('pageScroll()',5000); // scrolls every 1000 milliseconds } </script> </head> <iframe src="file:///D:/PrivateDocs/WorkflowPage/Stinkyxml.htm" name="frame1" scrolling="auto" frameborder="no" style="float:left" height="4500" width="100%"> <body onLoad="pageScroll()"></body> </iframe> <body> <body onLoad="pageScroll()"></body> </body> </html> [icode] A noob needs some help. I'm using a combination of Yahoo Pipes and rssdisplayer.js to display some snippets from several RSS feeds on a new site I'm building. The trouble I'm having is that (i) the feeds don't update when I refresh the page, I think because a cached version of the page is being loaded, and (ii) I'd like to have the div containing the feeds auto-refresh at a given time interval. I've got a Twitter javascript working that does both these things, but can't work out how to get the rssdisplayer.js working this way. The rssdisplayer code is: Code: google.load("feeds", "1") //Load Google Ajax Feed API (version 1)
function rssdisplayer(divid, url, feedlimit, showoptions){
this.showoptions=showoptions || "" //get string of options to show ("date" and/or "description")
var feedpointer=new google.feeds.Feed(url) //create new instance of Google Ajax Feed API
feedpointer.setNumEntries(feedlimit) //set number of items to display
document.write('<div id="'+divid+'">Loading feed...</div>')
this.feedcontainer=document.getElementById(divid)
var displayer=this
feedpointer.load(function(r){displayer.formatoutput(r)}) //call Feed.load() to retrieve and output RSS feed
}
rssdisplayer.prototype.formatdate=function(datestr){
var itemdate=new Date(datestr)
return "<span style='color:gray; font-size: 90%'>"+itemdate.toLocaleString()+"</span>"
}
rssdisplayer.prototype.formatoutput=function(result){
if (!result.error){ //if RSS feed successfully fetched
var thefeeds=result.feed.entries //get all feed entries as a JSON array
var rssoutput="<ul>"
for (var i=0; i<thefeeds.length; i++){ //loop through entries
var itemtitle="<a href=\"" + thefeeds[i].link + "\">" + thefeeds[i].title + "</a>"
var itemdate=/date/i.test(this.showoptions)? this.formatdate(thefeeds[i].publishedDate) : ""
var itemdescription=/description/i.test(this.showoptions)? "<br />"+thefeeds[i].content : ""
rssoutput+="<li>" + itemtitle + " " + itemdate + itemdescription + "</li>"
}
rssoutput+="</ul>"
this.feedcontainer.innerHTML=rssoutput
}
else //else, output error
alert("Error fetching feeds: "+result.error.message)
}
//USAGE SYNTAX: new rssdisplayer("divid", "rssurl", numberofitems, "displayoptions")
//new rssdisplayer("adiv", "http://www.cssdrive.com/index.php/news/rss_2.0/", 5, "date, description")
I've a web page when a user logs in, it will have a link that shows the "username" and a link for "logout". After the user logs out, the "username" and the "logout" links will change to "login" and "register" links, respectively. The page uses javascript to check a user cookie, if the user cookie exists, it will show the "username" link and the link for "logout". If no user cookie exists, "login" and "register" links will replace the "username" and "logout" links. Here's the problem: When a user who has log in, clicks the "logout" link, a perl script will delete the user cookie, and redirects back to the same page. The page does not show "login" and "register" links AUTOMATICALLY. Both links will appear ONLY after the user MANUALLY Refreshes the page. It appears that I need a system to refresh the page automacally ONLY one time. How can this be done? I'm trying to make my sidebar show 3 images then scroll to the next 3 automatically every 3 seconds or so. (vertically) Can anyone help me out with a reference I could look at how to do it or show a snippet of code? I've looked up various scripts for scrolling the pictures I have on the right vertically, but I can't seem to implement any of the ones I've found. I'm not trying to ask for you to code it all for me (unless you really want to), but just need some help! Thanks! Here's the site: www.beunthinkable.org Hi, i been poken around on here and have not found anything on this as of now, so i thought i would ask. i have a table of data that is positioned in the middle of one of my pages, rather than change the layout i thought it would be nice to just have the page auto scroll down to the middle of the page when the page loads so that the user does not have to constantly scroll down.. i tried this and several versions of it with no luck.. Code: scrollWindow();
// scrolls the window to auto load in middle of page
function scrollWindow()
{
window.scroll(0,450);
}
i also tried scrollBy, and still nothing i tried using the body onload and still nothing... the scroll bar does seem to flash down for a split sec and im wondering if im using the wrong javascript function or if i might have some css that is locking it to load top of page.. not sure what to look for in the css though.. is there a dif function to do this.. thanks |
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