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JavaScript - Add Onload To Run Js When Page Fully Loaded
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
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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 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! 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! 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();
}
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 Hi, ive been asked to make a blackjack game in javascript but I have a little bit of a problem. When the page loads, it deals cards to the player and the dealer, showing which cards have been dealt and the current scores. When I press the HIT button, i need to add another card to the array player_hand_img, and the value of this card to player_hand. I have successfully created this code, but my question is, how do I update the information (the score and the cards) on the screen after it has loaded? Can you do this in JavaScript or do I need another language? Thanks very much in advance! 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? hello, I am trying to get the page to fade in when it loads.. instead of using the microsoft enterpage metahead value.. here is the code I am trying, but no luck <html> <head> <SCRIPT LANGUAGE="JavaScript"> function fadeInPage() { if (document.getElementById("fadeDiv").filters.alpha.opacity < 100){ document.getElementById("fadeDiv").filters.alpha.opacity += 10; eval('setTimeout("fadeInPage()",100)'); } else{ document.getElementById('fadeDiv').style.visibility = "visable" } } </script> </head> <body onLoad="fadeinpage()"> <DIV ID="fadeDiv" style="visibility:hidden"> your page code goes here </DIV> </body> </html> Hello Can anyone help with the following problem On the following page http://www.stroudskittles.co.uk/signingon.html I have a Body onload event (to load the chained Menu) and a windows.onload event (to load the IFrame Ticker) If I open the page in Internet explorer both scripts function; however in Firefox I'm having problems. The Chained Menu works, however the IFrame Ticker does not display. Both events ahave ben placed on the boady tag. Can anyone advise how I can get both to display in Firefox Can anyone I am trying to run this script when the page loads I have tried different methods but still no luck I would appreciate it if somebody help me out [CODE]<a href="http://s230999743.mysite.com/768K.WMA" onclick="var win=window.open('','mywindow','height=523, width=640');win.document.write('\x3Chtml\x3E\x3Chead\x3E\x3Ctitle\x3EVideo Window\x3C/title\x3E\x3Cstyle\x3Ehtml,body {margin:0;padding:0;}\x3C/style\x3E\x3C/head\x3E\x3Cbody\x3E\x3Cembed src=\'http://s230999743.mysite.com/768K.WMA\' width=\'640\' height=\'523\' autostart=\'1\' showcontrols=\'1\' type=\'application/x-mplayer2\' pluginspage=\'http://www.microsoft.com/windows/windowsmedia/download/\'\x3E \x3C/embed\x3E\x3C/body\x3E\x3C/html\x3E');return false;">Enter link text here.</a>[CODE] I have the following javascript function: [ function addNewWindowEvent(evType, fn) { if (window.addEventListener) { this.addEventListener("load", fn, false); return true; } else if (window.attachEvent) { var onload = "onload" this.attachEvent(onload, fn); return true; } else { return false; } } ] which is giving me a an exception every time a page on our site loads. The actual exception in firefox is this: uncaught exception: [Exception... "Could not convert JavaScript argument" nsresult: "0x80570009 (NS_ERROR_XPC_BAD_CONVERT_JS)" location: "JS frame :: https://cms-dev.stchas.edu/global/js/hdvscripts.js :: addNewWindowEvent :: line 5" data: no] and I'm not sure exactly what it's complaining about. I'm relatively new to javascript so diagnosing and fixing this problem has me quite puzzled, and so far I have been unable to find anything helpful when I try and google for information on this. I would appreciate any help or suggestions. Thanks. henryv This is more out of curiosity than a desire to a use it, a quick google didn't turn anything up. Basically my question is, is it possible to fully justify text on a web page? I'm almost certain there's no easy way to do it with CSS or anything, so has anyone written a javascript code which like, works out string lengths and the space and thus calculates the exact spacings necessary to fully justify? Or is this just a massive headache which isn't worth the time needed to work it out? Hi, I have a small script that tries to open a child window. if successful, it then closes the child window and redirects the parent window. If this process fails, there is no child window, no redirection. the script below works fine in FireFox but in Chrome, if the process fails, the redirection still happens. I'm new to JS would appreciate your help many thanks Code: <script type="text/javascript">
function openwindow(){
testWindow = window.open("popup.php","interaction");
setTimeout(function() { testWindow.close(); },1000);
setTimeout(function() { window.location = "http://www.google.com"; },1000);
}
</script>
Hey all, I am doing an image/data rotating script. I get the data from a XML. I parse that data and build the divs and such. Data Set 1 --- background image in a div, with a button and some text overlayed on the div. ... ... Data Set 4 -- etc.. The thing is, I load the script and the div appears, BUT the text overlay appears first THEN the image pops up for the first Data Set. I can't have that. I need them both to appear at once. Is there a way to determine that a div background image is loaded? -- I have access to the prototype js library. thanks. Hello everyone, I have a code in JavaScript that crops an image, but I have a problem: the image have to be loaded before I cropped it.. so I have to add an examination that ONLY when the image was loaded, crop it.. (I need a code that works all browsers).. I think I need an operation that is called: Complete(). can somenone help me please? my english is not very good so I hope I explained my problem well.. Thank you all!! |
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