JavaScript - Wait Until Page Loaded Before Running Script.
Hi,
I have a site that runs a javascript slideshow automatically when a user visits it. It is designed in such a way that I cannot pre-load individual images for aesthetic reasons. (Also the whole concept makes my brain hurt.) I therefore need 1 of 2 things: 1. A preloader that doesn't show the page or start the slideshow until all the images are loaded. or 2. I could start with the slideshow paused, and when the page is fully loaded, the play command (currently attached to a 'play' button) is 'sent'. (I'm not techy, so this is the best I can do as explanation.) The latter would probably be more elegant, especially if ultimately I could hide the controls for the slideshow with a loading bar until all the html is loaded, and then show them when the slideshow starts. I'm sorry if this is a really basic question. I tried searching the site but couldn't find anything. If you do feel like answering, can you imagine that you are speaking to a 5 year old. Then dumb it down a bit. I need all the explanation and clarity I can get! Thanks! Similar TutorialsI have an embedded font in my CSS however somtimes the texts loads before the font loads (i.e. the text is loaded in a normal font the it changes after). Is there anyway i can say dont load page until the font file is loaded, or maybe dont show the div until the font is loaded?
I doubt this is possible, but I have no idea what actually happens when a page loads, so I thought I would give it a shot... if a js file that is loaded externally has parameters, is it possible to turn those parameters into variables, giving the user the option to select the variable's value after the page has loaded? maybe a concrete example would be better... in google maps, the api is loaded like this: Code: <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script> but if you wanted to specify that you want the api to function in Spanish, you load it like this: Code: <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false&language=es"></script> and that language=es is the one that I want to change. But I can't seem to make it into a variable on page load, like this: Code: <script type="text/javascript"> var lang="es"; </script> <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false&language=lang"></script> much less make it changeable once the page has loaded. I have a feeling that this is a really dumb question, but can it be done without reloading the entire page? Is there a way that I can run a second set of this script on the same page at the same time? If I want a 2nd instance of this script to run on the same page...what values would I need to rename in the 2nd instance? When I try to place this script a second time it only shows the 2nd scripts values or banner ads... I'm trying to make a Banner rotation placement on my sites inner pages (It's a Wordpress powered site) One Set of Banners that ROTATE directly Above Another Set... I like this script since it allows for a Random order on each page load and will ALSO cycle through Each Banner once before repeating the order, That way Each Advertiser will get seen before another is seen a second or third time... I know there are plug-ins for wordpress for advertising, but I have not found any that will rotate out the banners every x niumber of seconds, like this does... Is there a way that I can run a second set of this script on the same page at the same time? <script type="text/javascript"> // Flexible Image Slideshow- By JavaScriptKit.com (http://www.javascriptkit.com) // For this and over 400+ free scripts, visit JavaScript Kit- http://www.javascriptkit.com/ // This notice must stay intact for use var ultimateshow=new Array() //ultimateshow[x]=["path to image", "OPTIONAL link for image", "OPTIONAL link target"] ultimateshow[0]=['http://www.rockinghamcountymerchants.com/CraigTravis/CraigTravis250x250.jpg', 'http://tcraigtravis.com/', '_new'] ultimateshow[1]=['http://www.rceno.com/RCENO/bannerads/elizabethspizza/elizabethspizza250x250.jpg', 'http://www.rceno.com/RCENO/advertisers/elizabethspizza/index.html', '_new'] ultimateshow[2]=['http://www.rceno.com/RCENO/bannerads/gavinsmightychamps/gavin250x250.jpg', 'http://www.gavinsmightychamps.com/index.html', '_new'] ultimateshow[3]=['http://www.rceno.com/RCENO/bannerads/redrivergrill/RedRiver2420-250x250.jpg', 'http://www.rockinghamcountymerchants.com/redrivergrill', '_new'] ultimateshow[4]=['http://www.rceno.com/RCENO/bannerads/qualitycleaners/QC250x250-011510.jpg', 'http://www.rockinghamcountymerchants.com/qualitycleaners', '_new'] //configure the below 3 variables to set the dimension/background color of the slideshow var slidewidth="250px" //set to width of LARGEST image in your slideshow var slideheight="250px" //set to height of LARGEST iamge in your slideshow var slidecycles="continous" //number of cycles before slideshow stops (ie: "2" or "continous") var randomorder="yes" //randomize the order in which images are displayed? "yes" or "no" var preloadimages="yes" //preload images? "yes" or "no" var slidebgcolor='white' //configure the below variable to determine the delay between image rotations (in miliseconds) var slidedelay=9000 ////Do not edit pass this line//////////////// var ie=document.all var dom=document.getElementById var curcycle=0 if (preloadimages=="yes"){ for (i=0;i<ultimateshow.length;i++){ var cacheimage=new Image() cacheimage.src=ultimateshow[i][0] } } var currentslide=0 function randomize(targetarray){ ultimateshowCopy=new Array() var the_one var z=0 while (z<targetarray.length){ the_one=Math.floor(Math.random()*targetarray.length) if (targetarray[the_one]!="_selected!"){ ultimateshowCopy[z]=targetarray[the_one] targetarray[the_one]="_selected!" z++ } } } if (randomorder=="yes") randomize(ultimateshow) else ultimateshowCopy=ultimateshow function rotateimages(){ curcycle=(currentslide==0)? curcycle+1 : curcycle ultcontainer='<center>' if (ultimateshowCopy[currentslide][1]!="") ultcontainer+='<a href="'+ultimateshowCopy[currentslide][1]+'" target="'+ultimateshowCopy[currentslide][2]+'">' ultcontainer+='<img src="'+ultimateshowCopy[currentslide][0]+'" border="0">' if (ultimateshowCopy[currentslide][1]!="") ultcontainer+='</a>' ultcontainer+='</center>' if (ie||dom) crossrotateobj.innerHTML=ultcontainer if (currentslide==ultimateshow.length-1) currentslide=0 else currentslide++ if (curcycle==parseInt(slidecycles) && currentslide==0) return setTimeout("rotateimages()",slidedelay) } if (ie||dom) document.write('<div id="slidedom" style="width:'+slidewidth+';height:'+slideheight+'; background-color:'+slidebgcolor+'"></div>') function start_slider(){ crossrotateobj=dom? document.getElementById("slidedom") : document.all.slidedom rotateimages() } if (ie||dom) window.onload=start_slider </script> In Other words I would have one set of 5 ads rotating and directly below it another set of 5 Ads I have 2 pages, If in test.php i include test2.php everything is working perfect, but if the page appear the script is not working. Can someone help me find a problem? test.php PHP Code: <head> <script> function Show_test2(){ var ajaxRequest; try{ ajaxRequest = new XMLHttpRequest(); } catch (e){ try{ ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) { try{ ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP"); } catch (e){ alert("Your browser broke!"); return false; } } } var ot = document.getElementById('over_time').value; var queryString = "?ot=" + ot; ajaxRequest.open("GET", "test2.php" + queryString, true); ajaxRequest.send(null); ajaxRequest.onreadystatechange = function(){ if(ajaxRequest.readyState == 4){ var ajaxDisplay = document.getElementById('Show_test2'); ajaxDisplay.innerHTML = ajaxRequest.responseText; } } } </script> </head> <body> <?php //include ("test2.php"); $year = 2014; if(!empty($year)) { echo 'Over Time: '; echo ' <select name="over_time" id="over_time" onclick="Show_test2()"> <option value="1">0</option> <option value="2">1</option> <option value="3">2</option> <option value="4">3</option> <option value="5">4</option> <option value="6">5</option> </select> <br/>'; echo '<div id="Show_test2"></div>'; } ?> </body> test2.php PHP Code: <html> <script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script> <script> $(function() { $('input[name^="player"]').keyup(function(event) { var player = $(this).attr("name").split('_'); player = player[1]; var player_sum = 0; $('.player_'+player).each(function(index, el) { var pt = parseInt($(el).val()); if(!isNaN(pt)) { player_sum += pt; } }); $('#sum_'+player).html(player_sum); }); }); </script> <body> <?php echo 'first half<br>'; for ($i=1;$i<4;$i++){ echo "gracz".$i.": <input type='text' class='player_".$i."' name='player_".$i."' size='1' maxlength='2'> "; } echo '<br><br>'; echo 'second half<br>'; for ($i=1;$i<4;$i++){ echo "gracz".$i.": <input type='text' class='player_".$i."' name='player_".$i."' size='1' maxlength='2'> "; } echo '<br><br>'; for ($i=1;$i<4;$i++){ echo "gracz".$i.": <span id='sum_".$i."'>0</span> "; } echo '<br><br>'; ?> </body> </html> Thanks Hey, I have a calculation system that uses ajax with php and xml and executes with onkeyup. The only problem with this is the result can be returned before the user finishes entering the entire number. My question is how can I give a delay prior to running the rest of the js. I know how to use setTimeout() but will it get reset out every time the function is called or for example if they enter 5 characters in the form, will the script be called 5 times with a second delay from each or will it only be called once? Is there a performance degradation involved? Hope that made sense. Thanks! I have been using a javascript code to display a "Please wait..." message on screen but it seems to work in some instances and not in others. Please assist me with javascript code that works in all instances Issue 1:- it doesnt pops up with d wait msg ven v click on buttons.. the buttons are not submit buttons.. instead on clicking dat button it calls a fnformsubmit() userdfnd funtion.. Issue 2:-- even after d response cums the wait msg window doesnt close.. it hangs in d backgrnd.. The foll code is used in the footer.jsp file... Please assist... <html> <head> <script type="text/javascript" src="/js/os/jquery-1.5.1.min.js" ></script> <script type="text/javascript" src="/js/os/jquery-ui-1.8.14.custom.min.js"></script> <link rel="stylesheet" type="text/css" media="all" href="/js/os/jquery-ui-1.8.14.custom.css"> <script type="text/javascript"> for (var i = 0; i < document.links.length; i++) { var attrib = document.links[i]; if (attrib.addEventListener) { attrib.addEventListener('click', attachModalDialog, false); } else if (attrib.attachEvent) { attrib.attachEvent('onclick', attachModalDialog); } } function attachModalDialog(evt) { //alert('for Click event.'); $(ModalDialog).dialog({ modal: 'true', title: 'Please Wait...', width: 400, height: 300, closeOnEscape: false }).dialog('open'); return true; } </script> </head> <body> <div id="ModalDialog" style="display:none;"> <pre> Server side process is in-progress. Please wait..... </pre> </div> </body> </html> i have an iframe on my webpage and i am loading appropriate page in it by clicking appropriate button but when user logs out and at that time some page is opened in iframe corresponding to the login pages(like "edit profile") of user then at that moment i want to know that what page is loaded in iframe so that i close it(if it corresponds to pages of login like "edit profile") as user logs out and if it does not correspond to login pages then it remains as it is.For doing that i must know that what page is loaded in iframe and compare it in " if(condition){statement} in logout function" with the logion pages so that i know that if any of them is loaded in iframe and if loaded then close it.Can you help me with that by giving exact code example. Hi all, I am facing problem in preventing my web page being loaded into an iFrame. I search in internet and found this solution : if (self == top) document.documentElement.style.display = 'block'; else top.location = self.location; The above java script code is simple redirecting me to the home page of my web site. But I donot want that kind of solution. When anybody tried to access my web page through iFrame, it should show an error message like "The content of the web site cannot be loaded into an IFrame". This message should be displayed inside the iFrame. For example, if we tried to access "google.com" site in an iframe, the website should not allow the iframe object to load into it, insted it will display an error message along with a provision to open webiste with an external link with it. Any help? thanks, -Sanath Im running js to do some color coding in a table, i tried adding the onload but its not working, can someone take a look ? I need this to run when the entire page is fully loaded and not before. THE FUNCTION Code: var table1_column_settings = [ [32,40], // ito score - First column values more than 5 will be red, 2-5 will be yellow, less than 2 will be green [11,12], // schedule [14,15], // cost [11,12], // execution [9,10], // commercial [41,50] // total ]; // Loop through all cells in a table, coloring each one according to column-specific thresholds function color_cells(table, column_settings) { // How many rows are in the table? var num_rows = table.rows.length; // Loop through all rows. for (var r = 0; r < num_rows; r++) { // Get a reference to the current row. var this_row = table.rows[r]; // How many cells are in this row? var num_cells = this_row.cells.length; // Loop through all cells in this row. for (var c = 0; c < num_cells; c++) { // Get a reference to the cell. var this_cell = this_row.cells[c]; // Get the numerical value of the first (and only) node inside the cell. var cell_value = parseFloat(this_cell.firstChild.nodeValue); // If it's a number (literally if it's not not not-a-number) if (!isNaN(cell_value)) { // Apply the color according to the thresholds for this column number (c). if (cell_value > column_settings[c][1]) this_cell.style.backgroundColor= "red"; else if (cell_value > column_settings[c][0]) this_cell.style.backgroundColor= "yellow"; else this_cell.style.backgroundColor = "green"; } } } } EXECUTE THE FUNCTION Code: </TBODY> </table> <script> color_cells(document.getElementById("table1"), table1_column_settings);</script> //I TRIED LIKE THIS <script> window.onload=color_cells(document.getElementById("table1"), table1_column_settings);</script> AND IT DIDNT WORK Hey all. I hate posting this problem, because I am quite embarrassed by this script I have put together. This is not the final script, it is a draft, but I am trying to learn as much as possible and I would like to fix this before I move on and completely rewrite it. As you can probably tell - this is my first crack at JS... Right now I have a page with a registration form, seen he http://www.temp1.hangnailproductions...gistration.php It is working as well as it can be in FireFox, but in IE it is not working at all. Now, I just ran the IE8 debugger, and my first problem is the onload function in the body tag, it is saying that an object is missing, but I do not understand what this means. Can anyone help me with this please? Again, sorry for asking for help on such a mess, but like I said - I need to learn and trial and error works best for me... Thanks very much. Im very new to java scripting so any help would be truly appreciated. I have a single web page that loads several iframes. One of the iframe pages has to be logged in first. I have that taken care of but once the page is loaded I need to change the source to a link with in the page. My guess is I need something to execute the code like a onload or something. This is what Ive been trying to get to work but like I said a newb! The iframe in question is named "cad" the initial source once loaded is 'https://urlname.com/mainmenu.asp' the source I need to change to is 'https://urlname.com/UnitStatusF.asp?agency_id=28' [CODE] function ChangesSrc() { var iframeid = document.getElementById(cad); var unitstatus = 'https://urlname.com/UnitStatusF.asp?agency_id=28' if (iframeid.src = 'https://urlname.com/mainmenu.asp') iframeid.src = unitstaus; return false; } [[CODE] hi, on my page: here the logos are greyscale but when the page is loading they flash up in colour?! could this be avoided and hidden? here is my Javascript o apply greyscale to my logos Code: $(window).load(function(){ // On window load. This waits until images have loaded which is essential // Fade in images so there isn't a color "pop" document load and then on window load $("#our-work img").animate({opacity:1},500); // clone image $('#our-work img').each(function(){ var el = $(this); el.css({"position":"absolute"}).wrap("<div class='img_wrapper' style='display: inline-block'>").clone().addClass('img_grayscale').css({"position":"absolute","z-index":"998","opacity":"0","margin-left":"64px;"}).insertBefore(el).queue(function(){ var el = $(this); el.parent().css({"width":this.width,"height":this.height}); el.dequeue(); }); this.src = grayscale(this.src); }); // Fade image $('#our-work img').mouseover(function(){ $(this).parent().find('img:first').stop().animate({opacity:1}, 1000); }) $('.img_grayscale').mouseout(function(){ $(this).stop().animate({opacity:0}, 1000); }); }); // Grayscale w canvas method function grayscale(src){ var canvas = document.createElement('canvas'); var ctx = canvas.getContext('2d'); var imgObj = new Image(); imgObj.src = src; canvas.width = imgObj.width; canvas.height = imgObj.height; ctx.drawImage(imgObj, 0, 0); var imgPixels = ctx.getImageData(0, 0, canvas.width, canvas.height); for(var y = 0; y < imgPixels.height; y++){ for(var x = 0; x < imgPixels.width; x++){ var i = (y * 4) * imgPixels.width + x * 4; var avg = (imgPixels.data[i] + imgPixels.data[i + 1] + imgPixels.data[i + 2]) / 3; imgPixels.data[i] = avg; imgPixels.data[i + 1] = avg; imgPixels.data[i + 2] = avg; } } ctx.putImageData(imgPixels, 0, 0, 0, 0, imgPixels.width, imgPixels.height); return canvas.toDataURL(); } My source : Code: <html> <head> <title></title> <script type="text/javascript"> function runcode(cwin) { cwin.location.replace("javascript:alert("Loaded complete")"); } function newtab() { win=window.open("http://www.google.com"); setTimeout("runcode(win)",5000); setTiemout("win.close()",7000); } </script> </head> <body> <input type="button" value="Click to open newtab" onclick="newtab()" /> </body> </html> I want after newtab is opened 5s, alert window will be opened with message:"Loaded complete". Then 2s it is closed. But it isn't what I expect. Please fix it for me. Thanks in advance! The project I am working on involves a flash piece that communicates with a iframe. Currently the flash piece just calls on javascript functions. I want the buttons in the flash piece to be able to change the src of the iframe. PHP Code: <script type="text/javascript"> document.getElementById('video').setAttribute('src',address2); function closeVideo() { document.getElementById('video').style.height='0px'; return false; document.getElementById('video').setAttribute('src', address2); } function openVideo() { document.getElementById('video').style.height='391px'; return false; document.getElementById('video').setAttribute('src', address); } </script> So the way the code works now is when the page loads it sets the iframe with the id of 'video' to the variable address2 which it pulls from an XML file. In the flash piece when a button is hit, it calls openVideo() which "opens" the iframe and I want it to change the contents to address. This does not work though. It opens the frame but will not change the src. I've tried a bunch of different things now such as make the flash target the iframe using navigateToURL(request1, 'video'); but in Firefox and IE is opens it stills as if I had _blank in there. It does strangely work in Safari. Any ideas how to get this to work? I'm new to javascript so it could be something basic I'm overlooking I am having problems calling a JS function from asp.net code behind button click after some code is ran. The first time the button is clicked and it calls the JSfunction the readyState = loading and it cannot find the element. The second time the button is clicked the readystate is complete and it finds the element. Anybody have any suggestions? Here is the code behind ClientScript.RegisterStartupScript(Me.GetType(), "CC", "<SCRIPT language='javascript'>parent.abc('button1')</SCRIPT>") and javascript function abc(src) { if (document.readyState == 'loading') { alert(document.readyState); } else { document.getElementById(src).click(); } } Hey guys, I have a script that I'm running for a select box, and I need to run it twice now for another select box. Unfortunately if I duplicate it, it will not run at all. Im sure there is a way to combine these two so they both run. Any help very much appreciated! I have colored the text that differs between the two instances in red. Runs fine individually but not the two together . Code: <!--[][][][][][][][] Job Contacts Script --> <script type="text/javascript"> function show Customer (str) {var xmlhttp; if (str=="") {document.getElementById(" txtHint ").innerHTML=""; return;} if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest();} else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");} xmlhttp.onreadystatechange=function() {if (xmlhttp.readyState==4 && xmlhttp.status==200) {document.getElementById(" txtHint ").innerHTML=xmlhttp.responseText;}} xmlhttp.open("GET"," getcustomer.asp ?q="+str,true); xmlhttp.send(); }window.onload = function() { document.getElementsByName(' customers ')[0].onchange();}; </script> <!--[][][][][][][][] Job Ship Site Script --> <script type="text/javascript"> function show Shipto (str) {var xmlhttp; if (str=="") {document.getElementById(" txtHint2 ").innerHTML=""; return;} if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest();} else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");} xmlhttp.onreadystatechange=function() {if (xmlhttp.readyState==4 && xmlhttp.status==200) {document.getElementById(" txtHint2 ").innerHTML=xmlhttp.responseText;}} xmlhttp.open("GET"," getshipsite.asp ?q="+str,true); xmlhttp.send(); }window.onload = function() { document.getElementsByName( 'shipsites ')[0].onchange();}; </script> I recently coded a page that extracts certain nodes from an external XML file and prints a line of text on the webpage. It is an HTML page that is strictly devoted to this purpose. There is no other information on it. The page is currently stored locally on my computer, and when I open it, the script runs fine and outputs the correct text. However, when I transferred this script over to my web server, and locate it that way, it doesn't run correctly. When I go to the page, it is supposed to display a line of text at the top. It does when I run the file from my local machine, however when I open it from the server, it doesn't display this text. (Same browser, same computer) When I right-click and view the source, all the code is there, and the files are identical. Any idea as to why the script runs correctly only when I open the HTML page locally? I appreciate any help or advice. Thanks! Okay I am sure my script is loading when the page loads because of the alert box I have added but when I click on the button that is suppose to activate the script nothing happens. The button code is as follows: <button type="button" name="submit" value="submit" class="css3button" onclick="send(nick,passwd,userid,chan,showtime,showjoin,showpart,showquit,fname,fsize,nnick1,nnick2, nnick3,nnick4,nnick5)">Connect</button> I may be using the button wrong but I am new to javascript. Any suggestions would help. I have a form with three fields. When the user changes the value of field1, the form displays either field2 or field3. This works fine for NEW records. However, I'm running into a problem when trying to EDIT an existing record. When the form is loaded, I need to test the value of field1 and display either field2 or field3. I've tried using the form onload event, but do not know how to access the value of field1. I'm using Javascript and div tags. This is what I have so far. <script type="text/javascript"> function hide(obj) obj1 = document.getElementById(obj); obj1.style.display = 'none'; } function show(obj) { obj1 = document.getElementById(obj); obj1.style.display = 'block'; } function show_other(optionValue) { if(optionValue=='C') { show('divClass');} else{hide('divClass'); } if(optionValue=='W') { show('divWorkshop');} else{hide('divWorkshop'); } } </script> /* Field1 - is a drop down list */ <select name="ClassType" size="1" onchange="show_other(this.value)"> ... </select> /* Field2 */ <div id="divClass"> ... </div> /* Field 3 */ <div id="divWorkshop"> ... </div> Appreciate any assistance. Thanks Peter Can a random page be loaded without a prior visit to a site? I have a list of 15 people with a photo and contact information in a table with 3 columns and 5 rows. The issue is that the people near the bottom want a chance to be at the top the first time the page is viewed. It is unlikely that a second visit would happen. Is this possible to load a random page for a site without it being viewed or logged into before, therefore no cookies will be used. My knowledge of Java script code is limited so any help would be great. Thanks Motty |